Bug2437: Call finishLaunching() before sleeping

src/AudacityApp.cpp

@@ -1278,13 +1278,15 @@ bool AudacityApp::OnInit()
    // opened.  So use CallAfter() to delay the rest of initialization.
    // See CreateSingleInstanceChecker() where we send those paths over a
    // socket to the prior instance.
+
+   // This call is what probably makes the sleep unnecessary:
+   MacFinishLaunching();
+
    using namespace std::chrono;
    // This sleep may be unnecessary, but it is harmless.  It less NS framework
    // events arrive on another thread, but it might not always be long enough.
    std::this_thread::sleep_for(100ms);
    CallAfter([this]{
-      // This call is what probably makes the sleep unnecessary:
-      MacFinishLaunching();
       if (!InitPart2())
          exit(-1);
    });