WP_Debug_Data: Formatting update to code in wp-dropins method.

Resolves an indentation issue introduced while extracting the `wp-dropins` data into a separate method from the main `debug_data()` method.

Developed in #7446
Discussed in https://core.trac.wordpress.org/ticket/61648

Follow-up to [59100].

Props mukesh27.
See #61648.


git-svn-id: https://develop.svn.wordpress.org/trunk@59104 602fd350-edb4-49c9-b593-d223f7449a82

Author: dmsnell

src/wp-admin/includes/class-wp-debug-data.php

@@ -842,7 +842,7 @@ public static function get_wp_dropins(): array {
 			'label'       => __( 'Drop-ins' ),
 			'show_count'  => true,
 			'description' => sprintf(
-			/* translators: %s: wp-content directory name. */
+				/* translators: %s: wp-content directory name. */
 				__( 'Drop-ins are single files, found in the %s directory, that replace or enhance WordPress features in ways that are not possible for traditional plugins.' ),
 				'<code>' . str_replace( ABSPATH, '', WP_CONTENT_DIR ) . '</code>'
 			),