Updating server dependancies. (#7246)

vendor/github.com/xenolf/lego/cli.go

@@ -221,6 +221,7 @@ Here is an example bash command using the CloudFlare DNS provider:
 	fmt.Fprintln(w, "\tovh:\tOVH_ENDPOINT, OVH_APPLICATION_KEY, OVH_APPLICATION_SECRET, OVH_CONSUMER_KEY")
 	fmt.Fprintln(w, "\tpdns:\tPDNS_API_KEY, PDNS_API_URL")
 	fmt.Fprintln(w, "\tdnspod:\tDNSPOD_API_KEY")
+	fmt.Fprintln(w, "\totc:\tOTC_USER_NAME, OTC_PASSWORD, OTC_PROJECT_NAME, OTC_DOMAIN_NAME, OTC_IDENTITY_ENDPOINT")
 	w.Flush()
 
 	fmt.Println(`