Small fix.

git-svn-id: http://svn.igniterealtime.org/svn/repos/messenger/trunk@2653 b35dd754-fafc-0310-a699-88a17e54d16e

src/i18n/messenger_i18n_en.properties

@@ -217,7 +217,7 @@ tab.tab-session.descr=Click to manage connected sessions
         sidebar.user-message=Send Message
         sidebar.user-message.descr=Click to send a message
 tab.tab-groupchat=Group Chat
-tab.tab-groupchat.descr=Click to manage group chat setting
+tab.tab-groupchat.descr=Click to manage group chat settings
     sidebar.sidebar-groupchat-settings=Group Chat Settings
         sidebar.muc-server-props=Service Properties
         sidebar.muc-server-props.descr=