[dconf] Fix a typo in manpage

[Piotr Drąg <piotrdrag src gnome org>]

commit 9ac8f161962c8e2eeab2847caa036064d21e807f
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Tue Aug 29 03:18:19 2017 +0200

    Fix a typo in manpage
    
    https://bugzilla.gnome.org/show_bug.cgi?id=786829

 docs/dconf-overview.xml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/docs/dconf-overview.xml b/docs/dconf-overview.xml
index 7de3201..b245137 100644
--- a/docs/dconf-overview.xml
+++ b/docs/dconf-overview.xml
@@ -26,7 +26,7 @@
 
   <refnamediv>
     <refname>dconf</refname>
-    <refpurpose>A configuration systen</refpurpose>
+    <refpurpose>A configuration system</refpurpose>
   </refnamediv>
 
   <refsect1>