Prevent crash during import of privkeys.

@obscuren please check if this was commented out for a reason

ethereum/ethereum.go

@@ -64,10 +64,9 @@ func main() {
 		log.SetOutput(logfile)
 		logSys = log.New(logfile, "", flags)
 		logger.AddLogSystem(logSys)
-	}
-	/*else {
+	} else {
 		logSys = log.New(os.Stdout, "", flags)
-	}*/
+	}
 
 	ethchain.InitFees()