[gitg] Lower the importance of missing gravatars from "warning" to "debug"

[Alberto Fanjul <albfan src gnome org>]

commit 28aeadc8c5e0e96ca2616a7899a19b85d82ba2dd
Author: Jean-François Fortin Tam <nekohayo gmail com>
Date:   Wed May 27 10:21:19 2020 -0400

    Lower the importance of missing gravatars from "warning" to "debug"
    
    Fixes GitLab issue #286

 libgitg/gitg-avatar-cache.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/libgitg/gitg-avatar-cache.vala b/libgitg/gitg-avatar-cache.vala
index 56ac1f4a..3dea6d3b 100644
--- a/libgitg/gitg-avatar-cache.vala
+++ b/libgitg/gitg-avatar-cache.vala
@@ -75,7 +75,7 @@ public class Gitg.AvatarCache : Object
                }
                catch(Error e)
                {
-                       warning("Can not retrieve avatar from %s: %s", file.get_path(), e.message);
+                       debug("Can not retrieve avatar from %s: %s", file.get_path(), e.message);
                        return null;
                }