[gtk+] about dialog: Set a max-content-height on credits

[Matthias Clasen <matthiasc src gnome org>]

commit 6af5033386b60bdf71cc21d99d579c2a8c389880
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Aug 29 10:01:20 2016 -0400

    about dialog: Set a max-content-height on credits
    
    This keeps the credits section from making the dialog grow
    when there are lots of credits.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=770458

 gtk/ui/gtkaboutdialog.ui |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtk/ui/gtkaboutdialog.ui b/gtk/ui/gtkaboutdialog.ui
index 9dca96d..1ca6c85 100644
--- a/gtk/ui/gtkaboutdialog.ui
+++ b/gtk/ui/gtkaboutdialog.ui
@@ -158,6 +158,7 @@
                         <property name="visible">1</property>
                         <property name="hscrollbar-policy">never</property>
                         <property name="shadow-type">in</property>
+                        <property name="max-content-height">60</property>
                         <child>
                           <object class="GtkViewport" id="viewport1">
                             <property name="visible">1</property>