On OS X, the button for wxID_HELP should never accept a label, also, tweak sizing for help button in OS X Cocoa case. (fixes #10595)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59567 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/button_osx.cpp

@@ -35,7 +35,7 @@ bool wxButton::Create(wxWindow *parent,
     const wxString& name)
 {
     wxString label(lbl);
-    if (label.empty() && wxIsStockID(id))
+    if (label.empty() && wxIsStockID(id) && !(id == wxID_HELP))
         label = wxGetStockLabel(id);
 
     m_macIsUserPane = false ;