possible connection leak in dblink?

With gcc 4.6, I get this warning:

dblink.c: In function ‘dblink_send_query’:
dblink.c:620:7: warning: variable ‘freeconn’ set but not used [-Wunused-but-set-variable]

I don't know much about the internals of dblink, but judging from the
surrounding code, I guess that this fix is necessary:

diff --git i/contrib/dblink/dblink.c w/contrib/dblink/dblink.c
index 19b98fb..e014c1a 100644
--- i/contrib/dblink/dblink.c
+++ w/contrib/dblink/dblink.c
@@ -634,6 +634,10 @@ dblink_send_query(PG_FUNCTION_ARGS)
if (retval != 1)
elog(NOTICE, "%s", PQerrorMessage(conn));

+ /* if needed, close the connection to the database and cleanup */
+ if (freeconn)
+ PQfinish(conn);
+
PG_RETURN_INT32(retval);
}

Otherwise the connection might not get freed. Could someone verify
that?