[gimp] Bug 782759 - strict validation of appdata file fails.

[Jehan Pagès <jehanp src gnome org>]

commit 5b4dcbfb3e9c27b8a746770d56321ae73bec739b
Author: Jehan <jehan girinstud io>
Date:   Thu May 18 14:18:12 2017 +0200

    Bug 782759 - strict validation of appdata file fails.
    
    Command line: appstream-util validate-strict gimp.appdata.xml.in
    This fixes only the following warning:
    value-missing         : <!-- Copyright [year] [name] --> is not present
    Screenshot has not the right ratio. We will have to find one or more
    replacement screenshots.

 desktop/gimp.appdata.xml.in |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/desktop/gimp.appdata.xml.in b/desktop/gimp.appdata.xml.in
index a5268e4..08db6bb 100644
--- a/desktop/gimp.appdata.xml.in
+++ b/desktop/gimp.appdata.xml.in
@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 1995-2017 Spencer Kimball, Peter Mattis, and others -->
 <component type="desktop">
   <id>gimp.desktop</id>