Merge branch 'more-nullable' into 'master'
authorTimm Bäder <mail@baedert.org>
Mon, 19 Nov 2018 07:40:39 +0000 (07:40 +0000)
committerTimm Bäder <mail@baedert.org>
Mon, 19 Nov 2018 07:40:39 +0000 (07:40 +0000)
g-i: Add some nullable annotations

See merge request GNOME/gtk!419


Trivial merge