tar: List content of gz/bz2 archives
Merge pull request #92 from Mic92/patch-1

tar: List content of gz/bz2 archives
Trivial changes. Removed a copyright notice that I hadn't noticed before, and deleted a superfluous 'exit()' call.
Merge branch 'master' of github.com:chrisallenlane/cheat

* 'master' of github.com:chrisallenlane/cheat:
  tar: List content of gz/bz2 archives