mantis 8621: improve one error message a bit, thanks Tampa

OpenSim/Region/ScriptEngine/YEngine/MMRScriptCompile.cs

@@ -83,7 +83,7 @@ namespace OpenSim.Region.ScriptEngine.Yengine
                 }
                 if (tokenBegin == null)
                 {
-                    m_log.Debug ("[YEngine]: parsing errors on " + m_ScriptObjCodeKey);
+                    m_log.Debug ("[YEngine]: parsing errors on " + m_ScriptObjCodeKey + " (" + m_CameFrom + ")");
                     return null;
                 }