[frogr] Make appdata XML file pass appstream-util validate-strict

[Mario Sanchez Prada <msanchez src gnome org>]

commit 013ef4a3cf3af78fc834be8879342a9a6d3c3c78
Author: Mario Sanchez Prada <msanchez gnome org>
Date:   Sun May 21 09:21:19 2017 +0100

    Make appdata XML file pass appstream-util validate-strict
    
    Simply add a copyright header and rewrite the summary.

 data/org.gnome.frogr.appdata.xml.in |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/data/org.gnome.frogr.appdata.xml.in b/data/org.gnome.frogr.appdata.xml.in
index 26d1fd5..5140c8d 100644
--- a/data/org.gnome.frogr.appdata.xml.in
+++ b/data/org.gnome.frogr.appdata.xml.in
@@ -1,9 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 2009-2017 Mario Sanchez Prada <msanchez gnome org> -->
 <component type="desktop">
   <id>frogr.desktop</id>
   <metadata_license>CC0-1.0</metadata_license>
   <name>frogr</name>
-  <summary>frogr: a Flickr Remote Organizer for GNOME</summary>
+  <summary>A flickr uploader for GNOME</summary>
   <description>
     <p>
       frogr is a small application for the GNOME desktop that allows