Multiple shells can be (un)registered by a single package, like: register_shell="/bin/zsh-foo /bin/zsh-blah" --HG-- extra : convert_revision : 0172a74b41e26089da97fcdc8cc2d5cb6ae147f2
--HG-- extra : convert_revision : 8a9e2aa7f5693ba6a4b11196923aff6b4d0c6b2f