Docs: Replace incorrect usage of "who's" with "whose".

Whom can say who's "whose" is who's? Is it a Who that Horton heard? Maybe it's The Who whose "who" knowledge will hook whomever hoots "who's" instead of "whose".

Hoot. Hoot.

Props Hafiz.
Fixes #45026.



git-svn-id: https://develop.svn.wordpress.org/trunk@43665 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/user.php

@@ -244,7 +244,7 @@ function edit_user( $user_id = 0 ) {
  * Fetch a filtered list of user roles that the current user is
  * allowed to edit.
  *
- * Simple function who's main purpose is to allow filtering of the
+ * Simple function whose main purpose is to allow filtering of the
  * list of roles in the $wp_roles object so that plugins can remove
  * inappropriate ones depending on the situation or user making edits.
  * Specifically because without filtering anyone with the edit_users