fix https detection (broken if http2 is enabled), refs #20845

tests/test_nginx_vhosts.py

@@ -62,7 +62,7 @@ for name in os.listdir(nginx_dir):
         errors += 1
         continue
     domains = matching.groups()[0].strip().split(' ')
-    https = re.search(r'listen +\w* +ssl;', vhost) is not None \
+    https = re.search(r'listen +\w* +ssl', vhost) is not None \
         or re.search(r'ssl +on;', vhost) is not None
     for domain in domains:
         if domain == 'localhost':