diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000000..94a25f7f4c
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/src/wp-admin/plugins.php b/src/wp-admin/plugins.php
index 4d8c797b04..b253675403 100644
--- a/src/wp-admin/plugins.php
+++ b/src/wp-admin/plugins.php
@@ -479,7 +479,11 @@ if ( isset( $_GET['error'] ) ) :
 	if ( isset( $_GET['main'] ) ) {
 		$errmsg = __( 'You cannot delete a plugin while it is active on the main site.' );
 	} elseif ( isset( $_GET['charsout'] ) ) {
-		$errmsg = sprintf( __( 'The plugin generated %d characters of <strong>unexpected output</strong> during activation. If you notice &#8220;headers already sent&#8221; messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.' ), $_GET['charsout'] );
+		$errmsg = sprintf( _n(
+			'The plugin generated %d character of <strong>unexpected output</strong> during activation.',
+			'The plugin generated %d characters of <strong>unexpected output</strong> during activation.' ,
+			$_GET['charsout']
+		), $_GET['charsout'] ) . __( 'If you notice &#8220;headers already sent&#8221; messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.' );
 	} else {
 		$errmsg = __( 'Plugin could not be activated because it triggered a <strong>fatal error</strong>.' );
 	}