Comment 15 for bug 261977

When I did an update, 1:7.4~1ubuntu1.1 caused problems:

https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/266959

Setting up x11-common (1:7.4~1ubuntu1.1) ...
usage error: remove_conffile_commit() called with wrong number of arguments;
   expected 1, got 2
Please report a bug in the postinst script of the x11-common package,
   version 1:7.4~1ubuntu1.1 to the Debian Bug Tracking System.
   Include all messages above that mention the x11-common package.
   Visit <http://www.debian.org/Bugs/Reporting> on the World Wide Web for
   instructions, read the file /usr/share/doc/debian/bug-reporting.txt from
   the doc-debian package, or install the reportbug package and use the
   command of the same name to file a report.
dpkg: error processing x11-common (--configure):
 subprocess post-installation script returned error exit status 99