OF-507: Improve exception logging.

git-svn-id: http://svn.igniterealtime.org/svn/repos/openfire/trunk@12946 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/openfire/roster/RosterItemProvider.java

@@ -357,7 +357,9 @@ public class RosterItemProvider {
                     pstmt.executeUpdate();
                 }
                 catch (SQLException e) {
-                    Log.error(e.getMessage(), e);
+					Log.error("Unable to insert group with name '" + groupName
+							+ "' (rank: '" + i + "')into roster with id '"
+							+ rosterID + "'.", e);
                 }
             }
         }