Make rpmdbSync obey the no_dbsync flag

--- ./rpmdb/rpmdb.c.orig	2005-02-16 03:18:19.000000000 +0000
+++ ./rpmdb/rpmdb.c	2006-02-21 20:37:44.000000000 +0000
 /*@=incondefs@*/
@@ -906,6 +937,8 @@ int rpmdbSync(rpmdb db)
 	int xx;
 	if (db->_dbi[dbix] == NULL)
 	    continue;
+	if (db->_dbi[dbix]->dbi_no_dbsync)
+	    continue;
     	xx = dbiSync(db->_dbi[dbix], 0);
 	if (xx && rc == 0) rc = xx;
     }