[Merge] lp:~juliank/ubuntu-release-upgrader/upgrade-libc-first into lp:ubuntu-release-upgrader

[Julian Andres Klode]

Seems to work for the gnome-menus bug.
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https://code.launchpad.net/~juliank/ubuntu-release-upgrader/upgrade-libc-first/+merge/352553
Your team Ubuntu Core Development Team is requested to review the proposed merge of lp:~juliank/ubuntu-release-upgrader/upgrade-libc-first into lp:ubuntu-release-upgrader.