[dconf-editor] Clarify the “No schema available” message.

[Arnaud Bonatti <arnaudb src gnome org>]

commit 64345b376c5e887e7244b1c92d01dad7ae298784
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Mon Dec 11 14:25:28 2017 +0100

    Clarify the “No schema available” message.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=776794

 editor/registry-info.ui |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/editor/registry-info.ui b/editor/registry-info.ui
index 89dc8b5..af6ca63 100644
--- a/editor/registry-info.ui
+++ b/editor/registry-info.ui
@@ -44,7 +44,7 @@
                     <property name="hexpand">True</property>
                     <property name="max-width-chars">40</property>
                     <property name="wrap">True</property>
-                    <property name="label" translatable="yes">No schema available. Dconf Editor can’t find a 
schema associated with this key. The application that installed this key may have been removed, may have stop 
the use of this key, or may use a relocatable schema for defining its keys.</property>
+                    <property name="label" translatable="yes">No schema available. A schema is what 
describes the use of a key, and Dconf Editor can’t find one associated with this key. If the application that 
was using this key has been uninstalled, or if this key is obsolete, you may want to erase it.</property>
                   </object>
                 </child>
                 <child>