gpg --batch --status-fd 2 --passphrase-fd 0 --default-key "revoked@test.key"
--clearsign

After entering the wrong passphrase there is only an error message on stdout,
but no status messages like BAD_PASSPHRASE. With gpg 2.x there is at least a
INV_SGNR 9 status message, but also no BAD_PASSPHRASE
But the most important for me is that gpg 1.4 does not give me anything at all
on the status-fd.