accommodate bzip2's idiosyncrasies

git-svn-id: svn://svn.icculus.org/fs2open@10700 387891d4-d844-0410-90c0-e4c51a9137d3
Checking a ship_info flag against a ship flag isn't going to work


git-svn-id: svn://svn.icculus.org/fs2open@10701 387891d4-d844-0410-90c0-e4c51a9137d3