Administration: Replace Tagline option placeholder with a description.

As placeholders may introduce confusion about whether the example is the input's predefined value or not, this changeset moves the "Just another WordPress 
site" historic tagline as an example quoted in the field's description.

Props Cybr, audrasjb, sabernhardt, pavanpatil1, tb1909.
Fixes #57675.



Built from https://develop.svn.wordpress.org/trunk@55969


git-svn-id: http://core.svn.wordpress.org/trunk@55481 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/options-general.php

@@ -84,11 +84,17 @@ if ( is_multisite() ) {
 	/* translators: %s: Network title. */
 	$sample_tagline = sprintf( __( 'Just another %s site' ), get_network()->site_name );
 }
+$tagline_description = sprintf(
+	'%1$s %2$s',
+	__( 'In a few words, explain what this site is about.' ),
+	/* translators: %s: Site tagline example. */
+	sprintf( __( 'Example: “%s.”' ), $sample_tagline )
+);
 ?>
 <tr>
 <th scope="row"><label for="blogdescription"><?php _e( 'Tagline' ); ?></label></th>
-<td><input name="blogdescription" type="text" id="blogdescription" aria-describedby="tagline-description" value="<?php form_option( 'blogdescription' ); ?>" class="regular-text" placeholder="<?php echo $sample_tagline; ?>" />
-<p class="description" id="tagline-description"><?php _e( 'In a few words, explain what this site is about.' ); ?></p></td>
+<td><input name="blogdescription" type="text" id="blogdescription" aria-describedby="tagline-description" value="<?php form_option( 'blogdescription' ); ?>" class="regular-text" />
+<p class="description" id="tagline-description"><?php echo $tagline_description; ?></p></td>
 </tr>
 
 <?php

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.3-alpha-55968';
+$wp_version = '6.3-alpha-55969';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.