Consider:
0 dkg@alice:~/src/apt/apt/test/integration$ gpgv --keyring $(pwd)/marvinparanoid.pub tesst.txt.asc test.txt gpgv: Signature made Sat 09 Sep 2017 01:16:51 PM EDT gpgv: using RSA key DE66AECA9151AFA1877EC31DE8525D47528144E2 gpgv: Good signature from "Marvin Paranoid <marvin@example.org>" gpgv: WARNING: This key is not suitable for signing in --compliance=gnupg mode 0 dkg@alice:~/src/apt/apt/test/integration$ gpgv --compliance=gnupg --keyring $(pwd)/marvinparanoid.pub tesst.txt.asc test.txt gpgv: invalid option "--compliance=gnupg" 2 dkg@alice:~/src/apt/apt/test/integration$
I think that --compliance=gnupg is a gpg option -- it should not be emitted or mentioned in gpgv.