Some t() issues.

1,There is a warning:"The first parameter to t() should be a literal string. There should be no variables, concatenation, constants or other non-literal strings there. At t($output) in registration_role_with_approval.module on line 125. "
2,I think two strings displayed in UI should be t():
(1) $role_name.= " *needs administration approval"; //line 56
(2) '#title' => 'Choose a role', //line 63