[meld] Clarify licensing in appdata (#579)

[Kai Willadsen <kaiw src gnome org>]

commit 067ec73f76857930af0d1dda6d398bbf31258c40
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Fri May 14 16:55:09 2021 +1000

    Clarify licensing in appdata (#579)
    
    Our CC-BY-SA-3.0 licence is just for Meld's documentation, not for code.
    Since the AppStream spec has been updated to clarify that the
    project_license field is for the "main" licence of the code, we'll
    follow that advice.

 data/org.gnome.meld.appdata.xml.in.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/org.gnome.meld.appdata.xml.in.in b/data/org.gnome.meld.appdata.xml.in.in
index 1bb22559..2590df59 100644
--- a/data/org.gnome.meld.appdata.xml.in.in
+++ b/data/org.gnome.meld.appdata.xml.in.in
@@ -7,7 +7,7 @@
   </provides>
   <translation type="gettext">meld</translation>
   <metadata_license>CC0-1.0</metadata_license>
-  <project_license>GPL-2.0+ and CC-BY-SA-3.0</project_license>
+  <project_license>GPL-2.0+</project_license>
   <name>Meld</name>
   <summary>Compare and merge your files</summary>
   <description>