[gtk] (2 commits) ...Merge branch '138-gtk4-install-valgrind-suppressions' into 'master'

From: Matthias Clasen <matthiasc src gnome org>
To: commits-list gnome org
Cc:
Subject: [gtk] (2 commits) ...Merge branch '138-gtk4-install-valgrind-suppressions' into 'master'
Date: Mon, 24 Feb 2020 00:24:06 +0000 (UTC)

Summary of changes:

  e123853... build: Install Valgrind suppressions files
  78d63a4... Merge branch '138-gtk4-install-valgrind-suppressions' into