Add extra border below the buttons in the generic log dialog.

This fixes the problem with the dialog appearance in wxOSX/Cocoa where the
bottom of the buttons was truncated otherwise and arguably makes the dialog
look slightly better in the other ports too.

Closes #14398.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71940 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/logg.cpp

@@ -780,7 +780,7 @@ wxLogDialog::wxLogDialog(wxWindow *parent,
     btnSizer->Add(new wxButton(win, wxID_SAVE), flagsBtn);
 #endif // CAN_SAVE_FILES
 
-    paneSz->Add(btnSizer, wxSizerFlags().Right().Border(wxTOP));
+    paneSz->Add(btnSizer, wxSizerFlags().Right().Border(wxTOP|wxBOTTOM));
 #endif // wxUSE_CLIPBOARD || CAN_SAVE_FILES
 
     win->SetSizer(paneSz);