Coding Standards: Revert unrelated change to wp_send_user_request().

This fixes a mix of tabs and spaces in the email template. Spaces inside a string are not considered WPCS errors, and are not required to be converted to tabs.

Follow-up to [52060], [52063].

See #43700.

git-svn-id: https://develop.svn.wordpress.org/trunk@52076 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/user.php

@@ -4470,7 +4470,7 @@ function wp_send_user_request( $request_id ) {
 
 A request has been made to perform the following action on your account:
 
-	 ###DESCRIPTION###
+     ###DESCRIPTION###
 
 To confirm this, please click on the following link:
 ###CONFIRM_URL###