t1405: check for_each_reflog_ent_reverse() more thoroughly

If we are checking for a certain ordering, we should check that there are two
entries. Do this by mirroring the preceding test.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t1405-main-ref-store.sh

@@ -94,6 +94,7 @@ test_expect_success 'for_each_reflog_ent()' '
 
 test_expect_success 'for_each_reflog_ent_reverse()' '
 	$RUN for-each-reflog-ent-reverse HEAD >actual &&
+	head -n1 actual | grep recreate-main &&
 	tail -n1 actual | grep one
 '