Add Action to Form Tags In Settings Pages

[desrosj]

It would be nice to have additional hooks that allow adding attributes to form tags in settings pages.

For example, if you would like to allow a user to upload an image in a settings page, you need to add the enctype attribute to the form tag. Having a hook would allow you to avoid doing this with JS.

user-edit.php and user-new.php allow this using the 'user_edit_form_tag' and 'user_new_form_tag' hooks respectively, and it appears that edit-tag-form.php is adding this also. (http://core.trac.wordpress.org/ticket/15261)