[gnome-flashback] Correct description of fix-button-layout gsettings key

[Alberts Muktupāvels <muktupavels src gnome org>]

commit f6cb156d92cc1997918e66823e305bf8d5301d31
Author: Dmitry Shachnev <mitya57 gmail com>
Date:   Thu Jun 18 11:24:26 2015 +0300

    Correct description of fix-button-layout gsettings key
    
    https://bugzilla.gnome.org/show_bug.cgi?id=751093

 data/org.gnome.gnome-flashback.gschema.xml.in.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/org.gnome.gnome-flashback.gschema.xml.in.in 
b/data/org.gnome.gnome-flashback.gschema.xml.in.in
index 764128c..28b6bf6 100644
--- a/data/org.gnome.gnome-flashback.gschema.xml.in.in
+++ b/data/org.gnome.gnome-flashback.gschema.xml.in.in
@@ -72,7 +72,7 @@
                <key name="fix-button-layout" type="s">
                        <default>'menu:minimize,maximize,close'</default>
                        <_summary>Fix wrong button layout</_summary>
-                       <_description>If set to true, then gnome-flashback will force Gtk/DecorationLayout to 
value set by this setting. Set to empty string if you want to use gnome-settings-daemon overrides in 
xsettings plugin for 'Gtk/DecorationLayout' property.</_description>
+                       <_description>If set to non-empty string, then gnome-flashback will force 
Gtk/DecorationLayout to value set by this setting. Set to empty string if you want to use 
gnome-settings-daemon overrides in xsettings plugin for 'Gtk/DecorationLayout' property.</_description>
                </key>
        </schema>
 </schemalist>