Index: /trunk/src/wp-admin/includes/file.php
===================================================================
--- /trunk/src/wp-admin/includes/file.php	(revision 53457)
+++ /trunk/src/wp-admin/includes/file.php	(revision 53458)
@@ -2303,5 +2303,5 @@
 
 	if ( $error ) {
-		$error_string = __( '<strong>Error</strong>: Could not connect to the server. Please verify the settings are correct.' );
+		$error_string = __( '<strong>Error:</strong> Could not connect to the server. Please verify the settings are correct.' );
 		if ( is_wp_error( $error ) ) {
 			$error_string = esc_html( $error->get_error_message() );
Index: /trunk/src/wp-admin/includes/user.php
===================================================================
--- /trunk/src/wp-admin/includes/user.php	(revision 53457)
+++ /trunk/src/wp-admin/includes/user.php	(revision 53458)
@@ -144,10 +144,10 @@
 	/* checking that username has been typed */
 	if ( '' === $user->user_login ) {
-		$errors->add( 'user_login', __( '<strong>Error</strong>: Please enter a username.' ) );
+		$errors->add( 'user_login', __( '<strong>Error:</strong> Please enter a username.' ) );
 	}
 
 	/* checking that nickname has been typed */
 	if ( $update && empty( $user->nickname ) ) {
-		$errors->add( 'nickname', __( '<strong>Error</strong>: Please enter a nickname.' ) );
+		$errors->add( 'nickname', __( '<strong>Error:</strong> Please enter a nickname.' ) );
 	}
 
@@ -165,15 +165,15 @@
 	// Check for blank password when adding a user.
 	if ( ! $update && empty( $pass1 ) ) {
-		$errors->add( 'pass', __( '<strong>Error</strong>: Please enter a password.' ), array( 'form-field' => 'pass1' ) );
+		$errors->add( 'pass', __( '<strong>Error:</strong> Please enter a password.' ), array( 'form-field' => 'pass1' ) );
 	}
 
 	// Check for "\" in password.
 	if ( false !== strpos( wp_unslash( $pass1 ), '\\' ) ) {
-		$errors->add( 'pass', __( '<strong>Error</strong>: Passwords may not contain the character "\\".' ), array( 'form-field' => 'pass1' ) );
+		$errors->add( 'pass', __( '<strong>Error:</strong> Passwords may not contain the character "\\".' ), array( 'form-field' => 'pass1' ) );
 	}
 
 	// Checking the password has been typed twice the same.
 	if ( ( $update || ! empty( $pass1 ) ) && $pass1 != $pass2 ) {
-		$errors->add( 'pass', __( '<strong>Error</strong>: Passwords do not match. Please enter the same password in both password fields.' ), array( 'form-field' => 'pass1' ) );
+		$errors->add( 'pass', __( '<strong>Error:</strong> Passwords do not match. Please enter the same password in both password fields.' ), array( 'form-field' => 'pass1' ) );
 	}
 
@@ -183,9 +183,9 @@
 
 	if ( ! $update && isset( $_POST['user_login'] ) && ! validate_username( $_POST['user_login'] ) ) {
-		$errors->add( 'user_login', __( '<strong>Error</strong>: This username is invalid because it uses illegal characters. Please enter a valid username.' ) );
+		$errors->add( 'user_login', __( '<strong>Error:</strong> This username is invalid because it uses illegal characters. Please enter a valid username.' ) );
 	}
 
 	if ( ! $update && username_exists( $user->user_login ) ) {
-		$errors->add( 'user_login', __( '<strong>Error</strong>: This username is already registered. Please choose another one.' ) );
+		$errors->add( 'user_login', __( '<strong>Error:</strong> This username is already registered. Please choose another one.' ) );
 	}
 
@@ -194,16 +194,16 @@
 
 	if ( in_array( strtolower( $user->user_login ), array_map( 'strtolower', $illegal_logins ), true ) ) {
-		$errors->add( 'invalid_username', __( '<strong>Error</strong>: Sorry, that username is not allowed.' ) );
+		$errors->add( 'invalid_username', __( '<strong>Error:</strong> Sorry, that username is not allowed.' ) );
 	}
 
 	/* checking email address */
 	if ( empty( $user->user_email ) ) {
-		$errors->add( 'empty_email', __( '<strong>Error</strong>: Please enter an email address.' ), array( 'form-field' => 'email' ) );
+		$errors->add( 'empty_email', __( '<strong>Error:</strong> Please enter an email address.' ), array( 'form-field' => 'email' ) );
 	} elseif ( ! is_email( $user->user_email ) ) {
-		$errors->add( 'invalid_email', __( '<strong>Error</strong>: The email address is not correct.' ), array( 'form-field' => 'email' ) );
+		$errors->add( 'invalid_email', __( '<strong>Error:</strong> The email address is not correct.' ), array( 'form-field' => 'email' ) );
 	} else {
 		$owner_id = email_exists( $user->user_email );
 		if ( $owner_id && ( ! $update || ( $owner_id != $user->ID ) ) ) {
-			$errors->add( 'email_exists', __( '<strong>Error</strong>: This email is already registered. Please choose another one.' ), array( 'form-field' => 'email' ) );
+			$errors->add( 'email_exists', __( '<strong>Error:</strong> This email is already registered. Please choose another one.' ), array( 'form-field' => 'email' ) );
 		}
 	}
Index: /trunk/src/wp-admin/setup-config.php
===================================================================
--- /trunk/src/wp-admin/setup-config.php	(revision 53457)
+++ /trunk/src/wp-admin/setup-config.php	(revision 53458)
@@ -279,10 +279,10 @@
 
 		if ( empty( $prefix ) ) {
-			wp_die( __( '<strong>Error</strong>: "Table Prefix" must not be empty.' ) . $tryagain_link );
+			wp_die( __( '<strong>Error:</strong> "Table Prefix" must not be empty.' ) . $tryagain_link );
 		}
 
 		// Validate $prefix: it can only contain letters, numbers and underscores.
 		if ( preg_match( '|[^a-z0-9_]|i', $prefix ) ) {
-			wp_die( __( '<strong>Error</strong>: "Table Prefix" can only contain numbers, letters, and underscores.' ) . $tryagain_link );
+			wp_die( __( '<strong>Error:</strong> "Table Prefix" can only contain numbers, letters, and underscores.' ) . $tryagain_link );
 		}
 
@@ -317,5 +317,5 @@
 		if ( ! $wpdb->last_error ) {
 			// MySQL was able to parse the prefix as a value, which we don't want. Bail.
-			wp_die( __( '<strong>Error</strong>: "Table Prefix" is invalid.' ) );
+			wp_die( __( '<strong>Error:</strong> "Table Prefix" is invalid.' ) );
 		}
 
Index: /trunk/src/wp-includes/comment.php
===================================================================
--- /trunk/src/wp-includes/comment.php	(revision 53457)
+++ /trunk/src/wp-includes/comment.php	(revision 53458)
@@ -1271,17 +1271,17 @@
 
 	if ( isset( $comment_data['comment_author'] ) && mb_strlen( $comment_data['comment_author'], '8bit' ) > $max_lengths['comment_author'] ) {
-		return new WP_Error( 'comment_author_column_length', __( '<strong>Error</strong>: Your name is too long.' ), 200 );
+		return new WP_Error( 'comment_author_column_length', __( '<strong>Error:</strong> Your name is too long.' ), 200 );
 	}
 
 	if ( isset( $comment_data['comment_author_email'] ) && strlen( $comment_data['comment_author_email'] ) > $max_lengths['comment_author_email'] ) {
-		return new WP_Error( 'comment_author_email_column_length', __( '<strong>Error</strong>: Your email address is too long.' ), 200 );
+		return new WP_Error( 'comment_author_email_column_length', __( '<strong>Error:</strong> Your email address is too long.' ), 200 );
 	}
 
 	if ( isset( $comment_data['comment_author_url'] ) && strlen( $comment_data['comment_author_url'] ) > $max_lengths['comment_author_url'] ) {
-		return new WP_Error( 'comment_author_url_column_length', __( '<strong>Error</strong>: Your URL is too long.' ), 200 );
+		return new WP_Error( 'comment_author_url_column_length', __( '<strong>Error:</strong> Your URL is too long.' ), 200 );
 	}
 
 	if ( isset( $comment_data['comment_content'] ) && mb_strlen( $comment_data['comment_content'], '8bit' ) > $max_lengths['comment_content'] ) {
-		return new WP_Error( 'comment_content_column_length', __( '<strong>Error</strong>: Your comment is too long.' ), 200 );
+		return new WP_Error( 'comment_content_column_length', __( '<strong>Error:</strong> Your comment is too long.' ), 200 );
 	}
 
@@ -3530,7 +3530,7 @@
 	if ( get_option( 'require_name_email' ) && ! $user->exists() ) {
 		if ( '' == $comment_author_email || '' == $comment_author ) {
-			return new WP_Error( 'require_name_email', __( '<strong>Error</strong>: Please fill the required fields.' ), 200 );
+			return new WP_Error( 'require_name_email', __( '<strong>Error:</strong> Please fill the required fields.' ), 200 );
 		} elseif ( ! is_email( $comment_author_email ) ) {
-			return new WP_Error( 'require_valid_email', __( '<strong>Error</strong>: Please enter a valid email address.' ), 200 );
+			return new WP_Error( 'require_valid_email', __( '<strong>Error:</strong> Please enter a valid email address.' ), 200 );
 		}
 	}
@@ -3557,5 +3557,5 @@
 	$allow_empty_comment = apply_filters( 'allow_empty_comment', false, $commentdata );
 	if ( '' === $comment_content && ! $allow_empty_comment ) {
-		return new WP_Error( 'require_valid_comment', __( '<strong>Error</strong>: Please type your comment text.' ), 200 );
+		return new WP_Error( 'require_valid_comment', __( '<strong>Error:</strong> Please type your comment text.' ), 200 );
 	}
 
@@ -3571,5 +3571,5 @@
 
 	if ( ! $comment_id ) {
-		return new WP_Error( 'comment_save_error', __( '<strong>Error</strong>: The comment could not be saved. Please try again later.' ), 500 );
+		return new WP_Error( 'comment_save_error', __( '<strong>Error:</strong> The comment could not be saved. Please try again later.' ), 500 );
 	}
 
Index: /trunk/src/wp-includes/load.php
===================================================================
--- /trunk/src/wp-includes/load.php	(revision 53457)
+++ /trunk/src/wp-includes/load.php	(revision 53458)
@@ -625,5 +625,5 @@
 			sprintf(
 				/* translators: 1: $table_prefix, 2: wp-config.php */
-				__( '<strong>Error</strong>: %1$s in %2$s can only contain numbers, letters, and underscores.' ),
+				__( '<strong>Error:</strong> %1$s in %2$s can only contain numbers, letters, and underscores.' ),
 				'<code>$table_prefix</code>',
 				'<code>wp-config.php</code>'
Index: /trunk/src/wp-includes/ms-deprecated.php
===================================================================
--- /trunk/src/wp-includes/ms-deprecated.php	(revision 53457)
+++ /trunk/src/wp-includes/ms-deprecated.php	(revision 53458)
@@ -402,5 +402,5 @@
 	// Check if the domain has been used already. We should return an error message.
 	if ( domain_exists($domain, $path, $site_id) )
-		return __( '<strong>Error</strong>: Site URL you&#8217;ve entered is already taken.' );
+		return __( '<strong>Error:</strong> Site URL you&#8217;ve entered is already taken.' );
 
 	/*
@@ -411,5 +411,5 @@
 
 	if ( ! $blog_id = insert_blog($domain, $path, $site_id) )
-		return __( '<strong>Error</strong>: There was a problem creating site entry.' );
+		return __( '<strong>Error:</strong> There was a problem creating site entry.' );
 
 	switch_to_blog($blog_id);
Index: /trunk/src/wp-includes/pluggable.php
===================================================================
--- /trunk/src/wp-includes/pluggable.php	(revision 53457)
+++ /trunk/src/wp-includes/pluggable.php	(revision 53458)
@@ -623,5 +623,5 @@
 			// TODO: What should the error message be? (Or would these even happen?)
 			// Only needed if all authentication handlers fail to return anything.
-			$user = new WP_Error( 'authentication_failed', __( '<strong>Error</strong>: Invalid username, email address or incorrect password.' ) );
+			$user = new WP_Error( 'authentication_failed', __( '<strong>Error:</strong> Invalid username, email address or incorrect password.' ) );
 		}
 
Index: /trunk/src/wp-includes/user.php
===================================================================
--- /trunk/src/wp-includes/user.php	(revision 53457)
+++ /trunk/src/wp-includes/user.php	(revision 53458)
@@ -135,9 +135,9 @@
 
 		if ( empty( $username ) ) {
-			$error->add( 'empty_username', __( '<strong>Error</strong>: The username field is empty.' ) );
+			$error->add( 'empty_username', __( '<strong>Error:</strong> The username field is empty.' ) );
 		}
 
 		if ( empty( $password ) ) {
-			$error->add( 'empty_password', __( '<strong>Error</strong>: The password field is empty.' ) );
+			$error->add( 'empty_password', __( '<strong>Error:</strong> The password field is empty.' ) );
 		}
 
@@ -152,5 +152,5 @@
 			sprintf(
 				/* translators: %s: User name. */
-				__( '<strong>Error</strong>: The username <strong>%s</strong> is not registered on this site. If you are unsure of your username, try your email address instead.' ),
+				__( '<strong>Error:</strong> The username <strong>%s</strong> is not registered on this site. If you are unsure of your username, try your email address instead.' ),
 				$username
 			)
@@ -177,5 +177,5 @@
 			sprintf(
 				/* translators: %s: User name. */
-				__( '<strong>Error</strong>: The password you entered for the username %s is incorrect.' ),
+				__( '<strong>Error:</strong> The password you entered for the username %s is incorrect.' ),
 				'<strong>' . $username . '</strong>'
 			) .
@@ -214,9 +214,9 @@
 		if ( empty( $email ) ) {
 			// Uses 'empty_username' for back-compat with wp_signon().
-			$error->add( 'empty_username', __( '<strong>Error</strong>: The email field is empty.' ) );
+			$error->add( 'empty_username', __( '<strong>Error:</strong> The email field is empty.' ) );
 		}
 
 		if ( empty( $password ) ) {
-			$error->add( 'empty_password', __( '<strong>Error</strong>: The password field is empty.' ) );
+			$error->add( 'empty_password', __( '<strong>Error:</strong> The password field is empty.' ) );
 		}
 
@@ -249,5 +249,5 @@
 			sprintf(
 				/* translators: %s: Email address. */
-				__( '<strong>Error</strong>: The password you entered for the email address %s is incorrect.' ),
+				__( '<strong>Error:</strong> The password you entered for the email address %s is incorrect.' ),
 				'<strong>' . $email . '</strong>'
 			) .
@@ -352,10 +352,10 @@
 			$error = new WP_Error(
 				'invalid_email',
-				__( '<strong>Error</strong>: Unknown email address. Check again or try your username.' )
+				__( '<strong>Error:</strong> Unknown email address. Check again or try your username.' )
 			);
 		} else {
 			$error = new WP_Error(
 				'invalid_username',
-				__( '<strong>Error</strong>: Unknown username. Check again or try your email address.' )
+				__( '<strong>Error:</strong> Unknown username. Check again or try your email address.' )
 			);
 		}
@@ -504,5 +504,5 @@
 
 		if ( $spammed ) {
-			return new WP_Error( 'spammer_account', __( '<strong>Error</strong>: Your account has been marked as a spammer.' ) );
+			return new WP_Error( 'spammer_account', __( '<strong>Error:</strong> Your account has been marked as a spammer.' ) );
 		}
 	}
@@ -2831,5 +2831,5 @@
 
 	if ( ! ( $user instanceof WP_User ) ) {
-		return new WP_Error( 'invalidcombo', __( '<strong>Error</strong>: There is no account with that username or email address.' ) );
+		return new WP_Error( 'invalidcombo', __( '<strong>Error:</strong> There is no account with that username or email address.' ) );
 	}
 
@@ -3026,9 +3026,9 @@
 
 	if ( empty( $user_login ) ) {
-		$errors->add( 'empty_username', __( '<strong>Error</strong>: Please enter a username or email address.' ) );
+		$errors->add( 'empty_username', __( '<strong>Error:</strong> Please enter a username or email address.' ) );
 	} elseif ( strpos( $user_login, '@' ) ) {
 		$user_data = get_user_by( 'email', trim( wp_unslash( $user_login ) ) );
 		if ( empty( $user_data ) ) {
-			$errors->add( 'invalid_email', __( '<strong>Error</strong>: There is no account with that username or email address.' ) );
+			$errors->add( 'invalid_email', __( '<strong>Error:</strong> There is no account with that username or email address.' ) );
 		}
 	} else {
@@ -3084,5 +3084,5 @@
 
 	if ( ! $user_data ) {
-		$errors->add( 'invalidcombo', __( '<strong>Error</strong>: There is no account with that username or email address.' ) );
+		$errors->add( 'invalidcombo', __( '<strong>Error:</strong> There is no account with that username or email address.' ) );
 		return $errors;
 	}
@@ -3232,5 +3232,5 @@
 			sprintf(
 				/* translators: %s: Documentation URL. */
-				__( '<strong>Error</strong>: The email could not be sent. Your site may not be correctly configured to send emails. <a href="%s">Get support for resetting your password</a>.' ),
+				__( '<strong>Error:</strong> The email could not be sent. Your site may not be correctly configured to send emails. <a href="%s">Get support for resetting your password</a>.' ),
 				esc_url( __( 'https://wordpress.org/support/article/resetting-your-password/' ) )
 			)
@@ -3299,10 +3299,10 @@
 	// Check the username.
 	if ( '' === $sanitized_user_login ) {
-		$errors->add( 'empty_username', __( '<strong>Error</strong>: Please enter a username.' ) );
+		$errors->add( 'empty_username', __( '<strong>Error:</strong> Please enter a username.' ) );
 	} elseif ( ! validate_username( $user_login ) ) {
-		$errors->add( 'invalid_username', __( '<strong>Error</strong>: This username is invalid because it uses illegal characters. Please enter a valid username.' ) );
+		$errors->add( 'invalid_username', __( '<strong>Error:</strong> This username is invalid because it uses illegal characters. Please enter a valid username.' ) );
 		$sanitized_user_login = '';
 	} elseif ( username_exists( $sanitized_user_login ) ) {
-		$errors->add( 'username_exists', __( '<strong>Error</strong>: This username is already registered. Please choose another one.' ) );
+		$errors->add( 'username_exists', __( '<strong>Error:</strong> This username is already registered. Please choose another one.' ) );
 
 	} else {
@@ -3310,5 +3310,5 @@
 		$illegal_user_logins = (array) apply_filters( 'illegal_user_logins', array() );
 		if ( in_array( strtolower( $sanitized_user_login ), array_map( 'strtolower', $illegal_user_logins ), true ) ) {
-			$errors->add( 'invalid_username', __( '<strong>Error</strong>: Sorry, that username is not allowed.' ) );
+			$errors->add( 'invalid_username', __( '<strong>Error:</strong> Sorry, that username is not allowed.' ) );
 		}
 	}
@@ -3316,7 +3316,7 @@
 	// Check the email address.
 	if ( '' === $user_email ) {
-		$errors->add( 'empty_email', __( '<strong>Error</strong>: Please type your email address.' ) );
+		$errors->add( 'empty_email', __( '<strong>Error:</strong> Please type your email address.' ) );
 	} elseif ( ! is_email( $user_email ) ) {
-		$errors->add( 'invalid_email', __( '<strong>Error</strong>: The email address is not correct.' ) );
+		$errors->add( 'invalid_email', __( '<strong>Error:</strong> The email address is not correct.' ) );
 		$user_email = '';
 	} elseif ( email_exists( $user_email ) ) {
@@ -3373,5 +3373,5 @@
 			sprintf(
 				/* translators: %s: Admin email address. */
-				__( '<strong>Error</strong>: Could not register you&hellip; please contact the <a href="mailto:%s">site admin</a>!' ),
+				__( '<strong>Error:</strong> Could not register you&hellip; please contact the <a href="mailto:%s">site admin</a>!' ),
 				get_option( 'admin_email' )
 			)
@@ -3616,5 +3616,5 @@
 			$errors->add(
 				'user_email',
-				__( '<strong>Error</strong>: The email address is not correct.' ),
+				__( '<strong>Error:</strong> The email address is not correct.' ),
 				array(
 					'form-field' => 'email',
@@ -3628,5 +3628,5 @@
 			$errors->add(
 				'user_email',
-				__( '<strong>Error</strong>: The email address is already used.' ),
+				__( '<strong>Error:</strong> The email address is already used.' ),
 				array(
 					'form-field' => 'email',
Index: /trunk/src/wp-includes/wp-db.php
===================================================================
--- /trunk/src/wp-includes/wp-db.php	(revision 53457)
+++ /trunk/src/wp-includes/wp-db.php	(revision 53458)
@@ -3698,5 +3698,5 @@
 		if ( version_compare( $this->db_version(), $required_mysql_version, '<' ) ) {
 			/* translators: 1: WordPress version number, 2: Minimum required MySQL version number. */
-			return new WP_Error( 'database_version', sprintf( __( '<strong>Error</strong>: WordPress %1$s requires MySQL %2$s or higher' ), $wp_version, $required_mysql_version ) );
+			return new WP_Error( 'database_version', sprintf( __( '<strong>Error:</strong> WordPress %1$s requires MySQL %2$s or higher' ), $wp_version, $required_mysql_version ) );
 		}
 	}
Index: /trunk/src/wp-login.php
===================================================================
--- /trunk/src/wp-login.php	(revision 53457)
+++ /trunk/src/wp-login.php	(revision 53458)
@@ -791,7 +791,7 @@
 		if ( isset( $_GET['error'] ) ) {
 			if ( 'invalidkey' === $_GET['error'] ) {
-				$errors->add( 'invalidkey', __( '<strong>Error</strong>: Your password reset link appears to be invalid. Please request a new link below.' ) );
+				$errors->add( 'invalidkey', __( '<strong>Error:</strong> Your password reset link appears to be invalid. Please request a new link below.' ) );
 			} elseif ( 'expiredkey' === $_GET['error'] ) {
-				$errors->add( 'expiredkey', __( '<strong>Error</strong>: Your password reset link has expired. Please request a new link below.' ) );
+				$errors->add( 'expiredkey', __( '<strong>Error:</strong> Your password reset link has expired. Please request a new link below.' ) );
 			}
 		}
@@ -919,5 +919,5 @@
 		// Check if password fields do not match.
 		if ( ! empty( $_POST['pass1'] ) && trim( $_POST['pass2'] ) !== $_POST['pass1'] ) {
-			$errors->add( 'password_reset_mismatch', __( '<strong>Error</strong>: The passwords do not match.' ) );
+			$errors->add( 'password_reset_mismatch', __( '<strong>Error:</strong> The passwords do not match.' ) );
 		}
 
@@ -1227,5 +1227,5 @@
 					sprintf(
 						/* translators: 1: Browser cookie documentation URL, 2: Support forums URL. */
-						__( '<strong>Error</strong>: Cookies are blocked due to unexpected output. For help, please see <a href="%1$s">this documentation</a> or try the <a href="%2$s">support forums</a>.' ),
+						__( '<strong>Error:</strong> Cookies are blocked due to unexpected output. For help, please see <a href="%1$s">this documentation</a> or try the <a href="%2$s">support forums</a>.' ),
 						__( 'https://wordpress.org/support/article/cookies/' ),
 						__( 'https://wordpress.org/support/forums/' )
@@ -1238,5 +1238,5 @@
 					sprintf(
 						/* translators: %s: Browser cookie documentation URL. */
-						__( '<strong>Error</strong>: Cookies are blocked or not supported by your browser. You must <a href="%s">enable cookies</a> to use WordPress.' ),
+						__( '<strong>Error:</strong> Cookies are blocked or not supported by your browser. You must <a href="%s">enable cookies</a> to use WordPress.' ),
 						__( 'https://wordpress.org/support/article/cookies/#enable-cookies-in-your-browser' )
 					)
@@ -1342,5 +1342,5 @@
 				$errors->add( 'loggedout', __( 'You are now logged out.' ), 'message' );
 			} elseif ( isset( $_GET['registration'] ) && 'disabled' === $_GET['registration'] ) {
-				$errors->add( 'registerdisabled', __( '<strong>Error</strong>: User registration is currently not allowed.' ) );
+				$errors->add( 'registerdisabled', __( '<strong>Error:</strong> User registration is currently not allowed.' ) );
 			} elseif ( strpos( $redirect_to, 'about.php?updated' ) ) {
 				$errors->add( 'updated', __( '<strong>You have successfully updated WordPress!</strong> Please log back in to see what&#8217;s new.' ), 'message' );
