Fix the get_keyids() usage as it could return multiple key ids

Fix the get_keyids() usage as it could return multiple key ids

The get_keyids() function can return multiple keyids, when the
return value was not quoted, only the first keyid would be checked
with check_key() function.  This MR fixes both the error that came
with quoting the "$id" with value "12345 54321", and the code now
checks all returned keyids.