[gnome-builder] workbench: add tooltip for perspective selector

[Christian Hergert <chergert src gnome org>]

commit c78c5ea3ff9caa5be5dd84a48d1a34a3bc5e1cbd
Author: Christian Hergert <chergert redhat com>
Date:   Sat Feb 18 09:16:11 2017 -0800

    workbench: add tooltip for perspective selector

 libide/workbench/ide-perspective-menu-button.ui |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/libide/workbench/ide-perspective-menu-button.ui b/libide/workbench/ide-perspective-menu-button.ui
index cb0f161..71e697f 100644
--- a/libide/workbench/ide-perspective-menu-button.ui
+++ b/libide/workbench/ide-perspective-menu-button.ui
@@ -12,6 +12,7 @@
   </object>
   <template class="IdePerspectiveMenuButton" parent="GtkMenuButton">
     <property name="popover">popover</property>
+    <property name="tooltip-text" translatable="yes">Switch perspective</property>
     <child>
       <object class="GtkBox">
         <property name="orientation">horizontal</property>