[glib] gsettings: Fix copy-paste error in property documentation

[Philip Withnall <pwithnall src gnome org>]

commit 1275b94fe7efc4c7e4277f503d03a0086a0c0a3b
Author: Philip Withnall <withnall endlessm com>
Date:   Mon Sep 11 21:28:40 2017 +0100

    gsettings: Fix copy-paste error in property documentation
    
    This should fix the introspection binding for that property too.
    
    Signed-off-by: Philip Withnall <withnall endlessm com>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=656502

 gio/gsettings.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gio/gsettings.c b/gio/gsettings.c
index 45b10dd..59722e3 100644
--- a/gio/gsettings.c
+++ b/gio/gsettings.c
@@ -830,7 +830,7 @@ g_settings_class_init (GSettingsClass *class)
                   NULL, G_TYPE_BOOLEAN, 1, G_TYPE_UINT);
 
   /**
-   * GSettings:context:
+   * GSettings:backend:
    *
    * The name of the context that the settings are stored in.
    */