Comment 10 for bug 632280

doesn't work with the package from -proposed, either.

$ dpkg -l dpkg
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-=============================-=============================-==========================================================================
ii dpkg 1.15.5.6ubuntu4.2 Debian package management system

$ dpkg-source -x nethack-spoilers_3.2.2-1.dsc
dpkg-source: error: missing critical source control field Format