[regexxer/murrayc-update: 7/12] Replace (deprecated) get_vbox().

[Murray Cumming <murrayc src gnome org>]

commit 4fb5cc4263f155a2f44ebca6b6f2e971575c53ff
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon Feb 29 23:47:10 2016 +0100

    Replace (deprecated) get_vbox().

 src/mainwindow.cc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/mainwindow.cc b/src/mainwindow.cc
index d38725c..21713ce 100644
--- a/src/mainwindow.cc
+++ b/src/mainwindow.cc
@@ -95,7 +95,7 @@ FileErrorDialog::FileErrorDialog(Gtk::Window& parent, const Glib::ustring& messa
   for (ErrorList::const_iterator perr = error_list.begin(); perr != error_list.end(); ++perr)
     buffer_end = buffer->insert(buffer_end, *perr + '\n');
 
-  Box& box = *get_vbox();
+  Box& box = *get_content_area();
   Frame *const frame = new Frame();
   box.pack_start(*manage(frame), PACK_EXPAND_WIDGET);
   frame->set_border_width(6); // HIG spacing