(svn r25506) -Document: a function, and name it slightly better

src/os/windows/win32.cpp

@@ -462,7 +462,7 @@ int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLi
 
 	argc = ParseCommandLine(cmdline, argv, lengthof(argv));
 
-	ttd_main(argc, argv);
+	openttd_main(argc, argv);
 	return 0;
 }