[gnome-software] trivial: Drop GTK+ requirement on GsAuthDialog

[Robert Ancell <rancell src gnome org>]

commit 2204019e0e5870d2909fd19d137f639635970ba0
Author: Robert Ancell <robert ancell canonical com>
Date:   Thu Jun 30 11:52:16 2016 +1200

    trivial: Drop GTK+ requirement on GsAuthDialog
    
    It doesn't use any special widgets that require a new version. Match
    existing dialogs which require 3.10.

 src/gs-auth-dialog.ui |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/gs-auth-dialog.ui b/src/gs-auth-dialog.ui
index ce5a411..df5d8f0 100644
--- a/src/gs-auth-dialog.ui
+++ b/src/gs-auth-dialog.ui
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!-- Generated with glade 3.20.0 -->
 <interface>
-  <requires lib="gtk+" version="3.20"/>
+  <requires lib="gtk+" version="3.10"/>
   <template class="GsAuthDialog" parent="GtkDialog">
     <property name="can_focus">False</property>
     <property name="resizable">False</property>