Merge pull request #10 from summercat/patch-1

Fix the creation of EventSource

Author: mythz

src/ServiceStack.Logging.EventLog/EventLogger.cs

@@ -57,9 +57,9 @@ private void Write(object message, Exception execption, EventLogEntryType eventL
             StringBuilder sb = new StringBuilder();
 
             System.Diagnostics.EventLog eventLogger = new System.Diagnostics.EventLog();
-            if (!System.Diagnostics.EventLog.SourceExists(eventLogName))
+            if (!System.Diagnostics.EventLog.SourceExists(eventLogSource))
             {
-                System.Diagnostics.EventLog.CreateEventSource(eventLogName, eventLogSource);
+                System.Diagnostics.EventLog.CreateEventSource(eventLogSource, eventLogName);
             }
 
             sb.Append(message).Append(NEW_LINE);
@@ -224,4 +224,4 @@ public void WarnFormat(string format, params object[] args)
         }
 
     }
-}
+}