Tests: upstream_ip_hash_ipv6.t startup fixes.

upstream_ip_hash_ipv6.t

diff --git a/upstream_ip_hash_ipv6.t b/upstream_ip_hash_ipv6.t
index 33b9130..3850229 100644
--- a/upstream_ip_hash_ipv6.t
+++ b/upstream_ip_hash_ipv6.t
@@ -26,7 +26,7 @@
 select STDOUT; $| = 1;
 
 my $t = Test::Nginx->new()->has(qw/http proxy upstream_ip_hash realip unix/)
-	->write_file_expand('nginx.conf', <<'EOF')->run();
+	->write_file_expand('nginx.conf', <<'EOF');
 
 %%TEST_GLOBALS%%
 
@@ -95,10 +95,12 @@
 
 EOF
 
+$t->try_run('no inet6 support');
+
 plan(skip_all => 'no 127.0.0.1 on host')
 	if http_get('/') !~ /X-IP: 127.0.0.1/m;
 
-$t->try_run('no inet6 support')->plan(4);
+$t->plan(4);
 
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