Change comment to meta in whitespace test case to actually test whitespace handling

The point of this test case isn't to test comments, it's to
verify that the "newline bunny-hop bug" is fixed: whitespace
after metadata inside a wrapper isn't moved to before the meta.
This bug was fixed in I4375f4c07.

Change-Id: Ibdb748d46295da09c2fb8a2f6c6c41df7e3fa407