Don't join application arguments when running in perf mode

... otherwise we get "command not found".

Change-Id: I9f471d8b7021df83f0c09c3f06addb977f17353c
Task-number: QCE-67
Reviewed-by: Rainer Keller <[email protected]>

Author: ulherman

main.cpp

@@ -501,7 +501,7 @@ int main(int argc, char **argv)
         QStringList allArgs;
         allArgs << QLatin1String("perf") << QLatin1String("record")
                 << perfParams << QLatin1String("-o") << QLatin1String("-")
-                << QLatin1String("--") << defaultArgs.join(QLatin1Char(' '));
+                << QLatin1String("--") << defaultArgs;
 
         PerfProcessHandler *server = new PerfProcessHandler(&process, allArgs);
         int port = openServer(server->server(), range);