E-Mail Address required when editing user

We used to get this error when editing an LDAP user (e.g. adding a picture to their profile). I added this to ldapauth.module at line 178:

        switch (LDAPAUTH_ALTER_EMAIL_FIELD) {
          case LDAPAUTH_EMAIL_FIELD_REMOVE :
            $form['account']['mail']['#type'] = 'hidden';
            $form['account']['mail']['#required'] = FALSE; //Added
            $form['account']['mail']['#attributes']['READONLY'] = 'READONLY';
            break;
          case LDAPAUTH_EMAIL_FIELD_DISABLE :
            $form['account']['mail']['#required'] = FALSE; //Added
            $form['account']['mail']['#attributes']['READONLY'] = 'READONLY';
            break;
        }

Sorry I can't be bothered to make a patch, but it works.