Update

syntax/modules/http-auth-request.vim

@@ -0,0 +1,9 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'nginx') == -1
+  
+" HTTP Auth Request Module <http://nginx.org/en/docs/http/ngx_http_auth_request_module.html>
+" Implements client authorization based on the result of a subrequest
+syn keyword ngxDirectiveThirdParty auth_request
+syn keyword ngxDirectiveThirdParty auth_request_set
+
+
+endif