Tests: skip ssl_verify_depth.t with LibreSSL.
It fails with the new X509 verifier appeared in LibreSSL 3.4.0 due to
a chain depth not limited except by X509_VERIFY_MAX_CHAIN_CERTS (32).
The other two tests ssl_crl.t and ssl_verify_client.t pass again after
bug fixes in LibreSSL 3.4.2.
diff --git a/ssl_verify_depth.t b/ssl_verify_depth.t
index 5ec5057..4e010cc 100644
--- a/ssl_verify_depth.t
+++ b/ssl_verify_depth.t
@@ -27,10 +27,11 @@
eval { IO::Socket::SSL::SSL_VERIFY_NONE(); };
plan(skip_all => 'IO::Socket::SSL too old') if $@;
-my $t = Test::Nginx->new()->has(qw/http http_ssl/)
- ->has_daemon('openssl')->plan(9);
+my $t = Test::Nginx->new()->has(qw/http http_ssl/)->has_daemon('openssl');
-$t->write_file_expand('nginx.conf', <<'EOF');
+plan(skip_all => 'LibreSSL') if $t->has_module('LibreSSL');
+
+$t->plan(9)->write_file_expand('nginx.conf', <<'EOF');
%%TEST_GLOBALS%%
