[gimp] build: assume yes to questions when updating flatpak runtimes.

[Jehan <jehanp src gnome org>]

commit a654ecbd7013aff374eca20d3a9b85efedadebc4
Author: Jehan <jehan girinstud io>
Date:   Thu Sep 13 18:16:53 2018 +0200

    build: assume yes to questions when updating flatpak runtimes.

 build/flatpak/gimp-flatpak-cron.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/build/flatpak/gimp-flatpak-cron.sh b/build/flatpak/gimp-flatpak-cron.sh
index 784343502f..c009638155 100755
--- a/build/flatpak/gimp-flatpak-cron.sh
+++ b/build/flatpak/gimp-flatpak-cron.sh
@@ -32,7 +32,7 @@ BUILDBASE="$BUILDDIR/$date/"
 ARTIFACTDIR="$BUILDBASE/artifacts"
 BUILDDIR="$BUILDBASE/build/"
 
-flatpak update --user
+flatpak update --user --assumeyes
 
 # Jump to the source directory.
 # We assume readlink existence.