un-nest curl

curl-8.15.0/docs/cmdline-opts/haproxy-protocol.md

@@ -0,0 +1,23 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Long: haproxy-protocol
+Help: Send HAProxy PROXY protocol v1 header
+Protocols: HTTP
+Added: 7.60.0
+Category: http proxy
+Multi: boolean
+See-also:
+  - proxy
+Example:
+  - --haproxy-protocol $URL
+---
+
+# `--haproxy-protocol`
+
+Send a HAProxy PROXY protocol v1 header at the beginning of the connection.
+This is used by some load balancers and reverse proxies to indicate the
+client's true IP address and port.
+
+This option is primarily useful when sending test requests to a service that
+expects this header.