add a default parameter to function call.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1187 bbd45198-f89e-11dd-88c7-29a3b14d5316

components/finsh/finsh_ops.c

@@ -451,7 +451,7 @@ void OP_call()
 	switch (parameters)
 	{
 	case 0:
-		r = f();
+		r = f(0);
 		break;
 
 	case 1: