Fixed to close the correct preparedStatement.

git-svn-id: http://svn.igniterealtime.org/svn/repos/messenger/trunk@645 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/messenger/user/spi/DbRosterItemProvider.java

@@ -321,7 +321,7 @@ public class DbRosterItemProvider implements RosterItemProvider {
                     itemList.add(item);
                 }
                 finally {
-                    DbConnectionManager.close(pstmt, con);
+                    DbConnectionManager.close(gstmt, con);
                 }
             }
         }