[evolution-patches] Fix for uninitialised stack value in upgrade_passwords_1_2

[David Malcolm <dmalcolm redhat com>]

Fixes a compile-time warning, and a possible crash on migration if
something was up with  ~/evolution/private/config.xmldb

Index: mail/em-migrate.c
===================================================================
RCS file: /cvs/gnome/evolution/mail/em-migrate.c,v
retrieving revision 1.45
diff -u -r1.45 em-migrate.c
--- mail/em-migrate.c	21 Jul 2004 15:54:00 -0000	1.45
+++ mail/em-migrate.c	29 Sep 2004 20:06:52 -0000
@@ -698,7 +698,7 @@
 {
 	xmlNodePtr root, entry;
 	char *filename;
-	xmlDocPtr priv_doc;
+	xmlDocPtr priv_doc = NULL;
 	struct stat st;
 	int work = 0, res = -1;