Plugins: Use correct singular for "Drop-in" in plugins list table.

Props tobifjellner, mukesh27.
Fixes #46592.
Built from https://develop.svn.wordpress.org/trunk@45021


git-svn-id: http://core.svn.wordpress.org/trunk@44830 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/class-wp-plugins-list-table.php

@@ -450,7 +450,7 @@ class WP_Plugins_List_Table extends WP_List_Table {
 					break;
 				case 'dropins':
 					/* translators: %s: plugin count */
-					$text = _n( 'Drop-ins <span class="count">(%s)</span>', 'Drop-ins <span class="count">(%s)</span>', $count );
+					$text = _n( 'Drop-in <span class="count">(%s)</span>', 'Drop-ins <span class="count">(%s)</span>', $count );
 					break;
 				case 'paused':
 					/* translators: %s: plugin count */

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.2-alpha-45020';
+$wp_version = '5.2-alpha-45021';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.