Fix issue #391: input stack underflow on too few macro arguments.

Test/cppIndent.vert

@@ -58,4 +58,4 @@ sum += 900000000.0;
 
 #define FUNC(a,b)		a+b
 // needs to be last test in file due to syntax error
-void foo986(){	FUNC( (((2)))), 4); }  // ERROR, too many )
+void foo986(){	FUNC( (((2)))), 4); }  // ERROR, too few arguments )