WP_User_Query, one more column solves many problems

[jasonnathan]

It is currently not very easy to search a user by his first or last name but if one more column (in fact, just one more word) was added to the User Query object, we could instruct our users to set their display name to something that represents their names and they become searchable!

change line 490 from :

	else
		$search_columns = array('user_login', 'user_nicename');

to

	else
		$search_columns = array('user_login', 'user_nicename', 'display_name');

Now the display name yields results from search

[jasonnathan]

wp-includes/user.php

[greuben]

Dupe of #16366