[0.21] [Gui] Py311 Initialization of locales... (#3)

* [0.21] [MainGui] Py311add initialization of locales ...

... with native environment setting

* [0.21][Gui] use '%Y-%m-%d %H:%M:%S' as format string for date

src/Gui/View3DPy.cpp

@@ -1677,7 +1677,7 @@ void View3DInventorPy::eventCallback(void * ud, SoEventCallback * n)
         // Type
         dict.setItem("Type", Py::String(std::string(e->getTypeId().getName().getString())));
         // Time
-        dict.setItem("Time", Py::String(std::string(e->getTime().formatDate().getString())));
+        dict.setItem("Time", Py::String(std::string(e->getTime().formatDate("%Y-%m-%d %H:%M:%S").getString())));
         SbVec2s p = n->getEvent()->getPosition();
         Py::Tuple pos(2);
         pos.setItem(0, Py::Int(p[0]));

src/Main/MainGui.cpp

@@ -98,6 +98,7 @@ private:
 int main( int argc, char ** argv )
 {
 #if defined (FC_OS_LINUX) || defined(FC_OS_BSD)
+    setlocale(LC_ALL, ""); // use native environment settings
     // Make sure to setup the Qt locale system before setting LANG and LC_ALL to C.
     // which is needed to use the system locale settings.
     (void)QLocale::system();