Fix for wxCocoaMessageDialog construction accidently using the totally wrong wxDialog constructor.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@50320 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/cocoa/msgdlg.mm

@@ -47,7 +47,7 @@ wxCocoaMessageDialog::wxCocoaMessageDialog(wxWindow *parent,
                         const wxString& message,
                         const wxString& caption,
                         long style,
-                        const wxPoint& pos) : wxDialog(parent,message,caption,style)
+                        const wxPoint& pos) : wxDialog(parent,wxID_ANY,caption, pos, wxDefaultSize, style)
 {
 
     m_caption = caption;