update wxApp::argc/argv to remove the options parsed by GTK+ itself from them [backport from HEAD]

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@45591 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/app.cpp

@@ -504,6 +504,10 @@ bool wxApp::Initialize(int& argc, wxChar **argv)
         return false;
     }
 
+    // update internal arg[cv] as GTK+ may have removed processed options:
+    this->argc = argc;
+    this->argv = argv;
+
     // we can not enter threads before gtk_init is done
     gdk_threads_enter();