[libgda] Added missing symbol to libgda.symbols

[Vivien Malerba <vivien src gnome org>]

commit 9756781fea323ecd1a432e0a267c5a2ebd93c0b5
Author: Vivien Malerba <malerba gnome-db org>
Date:   Sun Nov 20 15:22:17 2011 +0100

    Added missing symbol to libgda.symbols

 libgda/libgda.symbols |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/libgda/libgda.symbols b/libgda/libgda.symbols
index aa6beb5..ef8a696 100644
--- a/libgda/libgda.symbols
+++ b/libgda/libgda.symbols
@@ -940,6 +940,7 @@
 	gda_value_new_default
 	gda_value_new_from_string
 	gda_value_new_from_xml
+	gda_value_new_null
 	gda_value_new_timestamp_from_timet
 	gda_value_reset_with_type
 	gda_value_set_binary