[Pkg-gmagick-im-team] Bug#860280: imagemagick-doc upgrade failure: dpkg-maintscript-helper: error: missing arguments after --

[Adrian Bunk]

Package: imagemagick-doc
Version: 8:6.9.7.4+dfsg-4
Severity: serious

...
Preparing to unpack .../03-imagemagick-doc_8%3a6.9.7.4+dfsg-4_all.deb ...
dpkg: warning: version 'imagemagick-doc' has bad syntax: version number does not start with digit
dpkg-maintscript-helper: error: missing arguments after --

Use 'dpkg-maintscript-helper help' for program usage information.
dpkg: error processing archive /tmp/apt-dpkg-install-hLDw5o/03-imagemagick-doc_8%3a6.9.7.4+dfsg-4_all.deb (--unpack):
...