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

From: Jakub Steiner <jimmac src gnome org>
To: commits-list gnome org
Cc:
Subject: [gtk/gtk-3-24] (2 commits) ...Merge branch 'separator-sidebar-3' into 'gtk-3-24'
Date: Mon, 10 Sep 2018 08:59:16 +0000 (UTC)

Summary of changes:

  f9ba306... Adwaita: Style separator.sidebar
  cbf76d4... Merge branch 'separator-sidebar-3' into 'gtk-3-24'