In /wp-admin/user, not all files are documented consistently

[NikV]

In /wp-admin/user, the first few files (about.php, credits.php, freedoms.php, index.php) have a simple code snippet at the beginning of the file as shown below.

/** Load WordPress Administration Bootstrap */
require_once( dirname( __FILE__ ) . '/admin.php' );

But in that same folder, there are a few files that do not have the same documentation (above the require_once) as the rest. I think to keep up with consistency of inline documentation, the rest of the files (in that folder) should be documented the same way if they have the same code snippet. I have attached the files that did not have the inline docs, but now do.

[DrewAPicture]

In 30228:

Ensure the requires for the admin bootstrap are documented in all wp-admin/user/ files.

Props NikV for the initial patch.
Fixes #29111.