Index: src/wp-content/themes/twentyfifteen/single.php
===================================================================
--- src/wp-content/themes/twentyfifteen/single.php	(revision 41356)
+++ src/wp-content/themes/twentyfifteen/single.php	(working copy)
@@ -18,7 +18,7 @@
 
 			/*
 			 * Include the post format-specific template for the content. If you want to
-			 * use this in a child theme, then include a file called called content-___.php
+			 * use this in a child theme, then include a file called content-___.php
 			 * (where ___ is the post format) and that will be used instead.
 			 */
 			get_template_part( 'content', get_post_format() );
Index: src/wp-includes/class-simplepie.php
===================================================================
--- src/wp-includes/class-simplepie.php	(revision 41356)
+++ src/wp-includes/class-simplepie.php	(working copy)
@@ -802,7 +802,7 @@
 	}
 
 	/**
-	 * Set the the default timeout for fetching remote feeds
+	 * Set the default timeout for fetching remote feeds
 	 *
 	 * This allows you to change the maximum time the feed's server to respond
 	 * and send the feed back.
@@ -3091,4 +3091,4 @@
 		}
 	}
 }
-endif;
\ No newline at end of file
+endif;
Index: src/wp-includes/js/customize-selective-refresh.js
===================================================================
--- src/wp-includes/js/customize-selective-refresh.js	(revision 41356)
+++ src/wp-includes/js/customize-selective-refresh.js	(working copy)
@@ -470,7 +470,7 @@
 			partial.createEditShortcutForPlacement( placement );
 			placement.container.removeClass( 'customize-partial-refreshing' );
 
-			// Prevent placement container from being being re-triggered as being rendered among nested partials.
+			// Prevent placement container from being re-triggered as being rendered among nested partials.
 			placement.container.data( 'customize-partial-content-rendered', true );
 
 			/*