[gimp] desktop: use https for everything, even the screenshots.

[Jehan Pagès <jehanp src gnome org>]

commit 7e22488848ad3852ebca94874d4996088fa32e5d
Author: Jehan <jehan girinstud io>
Date:   Tue May 23 16:09:29 2017 +0200

    desktop: use https for everything, even the screenshots.
    
    Even though there is automatic redirection anyway, better to explicitly
    set https. :-)

 desktop/gimp.appdata.xml.in |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/desktop/gimp.appdata.xml.in b/desktop/gimp.appdata.xml.in
index ed48dc4..953470a 100644
--- a/desktop/gimp.appdata.xml.in
+++ b/desktop/gimp.appdata.xml.in
@@ -41,11 +41,11 @@
   <url type="homepage">http://www.gimp.org/</url>
   <screenshots>
     <screenshot type="default">
-      <image>http://www.gimp.org/screenshots/Screenshot-gimp-2.10-painting.jpg</image>
+      <image>https://www.gimp.org/screenshots/Screenshot-gimp-2.10-painting.jpg</image>
       <_caption>Painting in GIMP</_caption>
     </screenshot>
     <screenshot type="default">
-      <image>http://www.gimp.org/screenshots/Screenshot-gimp-2.10-photo-editing.jpg</image>
+      <image>https://www.gimp.org/screenshots/Screenshot-gimp-2.10-photo-editing.jpg</image>
       <_caption>Photo editing in GIMP</_caption>
     </screenshot>
   </screenshots>