Fix node.compile fwrite size check.

The return value from fwrite was being checked against the size of the data rather than the number of bytes written.
This caused node.compile() to falsely return failure.

components/modules/node.c

@@ -603,7 +603,7 @@ static int writer(lua_State* L, const void* p, size_t size, void* u)
   if (!file)
     return 1;
 
-  if (size != 0 && (size != fwrite((const char *)p, size, 1, file)) )
+  if (size != 0 && (fwrite((const char *)p, size, 1, file) != 1) )
     return 1;
 
   return 0;