Docs: Split the "main part" comment in `wp-login.php` into two lines.

This aims to better match the multi-line comment format of the documentation standards.

Follow-up to [6643], [52945], [53313].

Props sabernhardt, NekoJonez.
Fixes #56843.
Built from https://develop.svn.wordpress.org/trunk@54848


git-svn-id: http://core.svn.wordpress.org/trunk@54400 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.2-alpha-54842';
+$wp_version = '6.2-alpha-54848';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.

wp-login.php

@@ -425,7 +425,9 @@ function wp_login_viewport_meta() {
 }
 
 /*
- * Main part: check the request and redirect or display a form based on the current action.
+ * Main part.
+ *
+ * Check the request and redirect or display a form based on the current action.
  */
 
 $action = isset( $_REQUEST['action'] ) ? $_REQUEST['action'] : 'login';