Theme starter content: Revamp the credits widget into an about widget.

The credits widget from the original commit was a nice test to see the date changing, but isn't really very inspirational. Also, implement it in Twenty Seventeen.

see #38615.


git-svn-id: https://develop.svn.wordpress.org/trunk@39255 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-content/themes/twentyseventeen/functions.php

@@ -108,7 +108,7 @@ function twentyseventeen_setup() {
 			'sidebar-1' => array(
 				'text_business_info',
 				'search',
-				'text_credits',
+				'text_about',
 			),
 
 			'sidebar-2' => array(
@@ -116,7 +116,7 @@ function twentyseventeen_setup() {
 			),
 
 			'sidebar-3' => array(
-				'text_credits',
+				'text_about',
 			),
 		),
 

src/wp-includes/theme.php

@@ -1838,9 +1838,9 @@ function get_theme_starter_content() {
 			'search' => array( 'search', array(
 				'title' => _x( 'Site Search', 'Theme starter content' ),
 			) ),
-			'text_credits' => array( 'text', array(
-				'title' => _x( 'Site Credits', 'Theme starter content' ),
-				'text' => sprintf( _x( 'This site was created on %s', 'Theme starter content' ), get_date_from_gmt( current_time( 'mysql', 1 ), 'c' ) ),
+			'text_about' => array( 'text', array(
+				'title' => _x( 'About This Site', 'Theme starter content' ),
+				'text' => _x( 'This may be a good place to introduce yourself and your site or include some credits.', 'Theme starter content' ),
 			) ),
 		),
 		'nav_menus' => array(