update_usermeta has still tasks on the open @todo

[hakre]

There is an @todo task left in the file user.php inside the update_usermeta function. Was easy to finish, patch attached.

Should be committed so it can be tested in the wild (I tested it already that it's working).

@hakre: Can you give some details about the testing you conducted?

That might need to be stripslashes_deep(). Postponing to 3.0 so we can make some testcases.

No need to test because @todo already marked that there was something to fix/remove not to test.

Feel free to write testcases, I might add some as well. Just point to them here.

@todo still in code.

@todo still in code.

Related: #11720

This function is now deprecated in favor of update_user_meta, which uses the generic metadata API.