Don't use sunken border for the list control in log dialog.

There doesn't seem to be any reason to use a heavy border here as there is
nothing much to separate the list control from. In particular this looks
rather horrible under OS X.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62430 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/logg.cpp

@@ -795,7 +795,7 @@ void wxLogDialog::CreateDetailsControls(wxWindow *parent)
     // create the list ctrl now
     m_listctrl = new wxListCtrl(parent, wxID_ANY,
                                 wxDefaultPosition, wxDefaultSize,
-                                wxSUNKEN_BORDER |
+                                wxBORDER_SIMPLE |
                                 wxLC_REPORT |
                                 wxLC_NO_HEADER |
                                 wxLC_SINGLE_SEL);