Use wxTB_DEFAULT_STYLE as default value for wxToolBar style.

No real changes, but this is more consistent with the other controls.

It also highlights the ports which use non-default style, e.g. wxQt where
wxNO_BORDER should probably not be used as part of default toolbar style but
rather added in the ctor implementation.

Closes #16667.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78098 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/osx/toolbar.h

@@ -28,7 +28,7 @@ class WXDLLIMPEXP_CORE wxToolBar: public wxToolBarBase
 
   inline wxToolBar(wxWindow *parent, wxWindowID id,
                    const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize,
-                   long style = wxTB_HORIZONTAL,
+                   long style = wxTB_DEFAULT_STYLE,
                    const wxString& name = wxToolBarNameStr)
   {
     Init();
@@ -37,7 +37,7 @@ class WXDLLIMPEXP_CORE wxToolBar: public wxToolBarBase
   virtual ~wxToolBar();
 
   bool Create(wxWindow *parent, wxWindowID id, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize,
-            long style = wxTB_HORIZONTAL,
+            long style = wxTB_DEFAULT_STYLE,
             const wxString& name = wxToolBarNameStr);
 
     virtual void SetWindowStyleFlag(long style);