revoking host key is broken

[Brian May]

Binary package hint: monkeysphere

Really publish this cert to pool.sks-keyservers.net ? (Y/n) y
/usr/share/monkeysphere/mh/revoke_key: line 96: mkmstempdir: command not found
gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model
gpg: depth: 0 valid: 1 signed: 0 trust: 0-, 0q, 0n, 0m, 0f, 1u
gpg: "0x!" not a key ID: skipping

Seems to be two bugs rolled in one, (1) I can't find mkmstempdir anywhere, (2) "0x${HOST_FINGERPRINT}!" expands to "0x!" as HOST_FINGERPRINT is not defined.

This was version 0.28-1 from lucid. I also tried version 0.31-1 from Debian unstable and encountered exactly the same problem.