[gtk/gtk-3-24] (2 commits) ...Merge branch 'fix-1788' into 'gtk-3-24'

From: Matthias Clasen <matthiasc src gnome org>
To: commits-list gnome org
Cc:
Subject: [gtk/gtk-3-24] (2 commits) ...Merge branch 'fix-1788' into 'gtk-3-24'
Date: Sat, 30 Mar 2019 12:27:30 +0000 (UTC)

Summary of changes:

  cd4b6a7... flowbox: children per line may not be 0
  8a15a7b... Merge branch 'fix-1788' into 'gtk-3-24'