POSIX: Add debug output to show where the app returns

src/platforms/posix/main.cpp

@@ -69,6 +69,7 @@ static void run_cmd(const vector<string> &appargs) {
 		arg[i] = (char *)0;
 		cout << "Running: " << command << "\n";
 		apps[command](i,(char **)arg);
+		cout << "Returning: " << command << "\n";
 		// XXX hack to prevent shell returning too fast
 		usleep(50000);
 	}