[glom] Fix typo to fix the build.

[Murray Cumming <murrayc src gnome org>]

commit 0729d1eefd87f2d0b48e355a655802780233f201
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Nov 11 23:11:07 2011 +0100

    Fix typo to fix the build.

 glom/mode_data/db_adddel/db_adddel.cc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/glom/mode_data/db_adddel/db_adddel.cc b/glom/mode_data/db_adddel/db_adddel.cc
index 2a0419d..6eff69f 100644
--- a/glom/mode_data/db_adddel/db_adddel.cc
+++ b/glom/mode_data/db_adddel/db_adddel.cc
@@ -2417,7 +2417,7 @@ void DbAddDel::on_treeview_selection_changed()
 
 void DbAddDel::on_selection_changed(bool selection)
 {
-  m_refContextDel->set_sensitive(selection);
+  m_refContextDelete->set_sensitive(selection);
   m_refContextAdd->set_sensitive(selection);
 }