[Merge] ~3v1n0/ubuntu/+source/gnome-calculator:ubuntu/master into ~ubuntu-desktop/ubuntu/+source/gnome-calculator:ubuntu/master

[Didier Roche]

Review: Approve

LGTM
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https://code.launchpad.net/~3v1n0/ubuntu/+source/gnome-calculator/+git/gnome-calculator/+merge/354328
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