[gjs: 1/3] CI: Add diffutils to Docker image

[Philip Chimento <pchimento src gnome org>]

commit 00b7c1dd0c0ee1b090fe8129574e00197325c4ee
Author: Philip Chimento <philip endlessm com>
Date:   Wed Oct 9 13:52:56 2019 -0700

    CI: Add diffutils to Docker image
    
    /usr/bin/diff is required for the debugger tests. See GNOME!350.

 test/ci-images.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/test/ci-images.sh b/test/ci-images.sh
index 60b37532..3c794a89 100755
--- a/test/ci-images.sh
+++ b/test/ci-images.sh
@@ -17,7 +17,7 @@ function do_Install_Dependencies(){
         perl-devel 'pkgconfig(libffi)' 'pkgconfig(zlib)' python2-devel \
         readline-devel which /usr/bin/zip \
         \
-        autoconf-archive cairo-gobject-devel dbus-daemon dbus-x11 \
+        autoconf-archive cairo-gobject-devel diffutils dbus-daemon dbus-x11 \
         dbus-glib-devel glib2-devel gobject-introspection-devel gtk3-devel \
         sysprof-devel