Document HTTP_PROXY.

man/go-sendxmpp.1

@@ -100,6 +100,11 @@ Username for XMPP account (JID)\.
 .TP
 \fB\-\-version\fR
 Show version information\.
+.SH "ENVIRONMENT VARIABLES"
+.SS "HTTP_PROXY"
+A SOCKS5 proxy can be used by setting the environment variable \fBHTTP_PROXY\fR\. This feature is considered experimental and there is no guarantee that there won't be any connections not using the proxy although it didn't happen during testing\.
+.P
+\fBHTTP_PROXY="socks5://127\.0\.0\.1:9050" go\-sendxmpp \-\-http\-upload file\.txt user@example\.org\fR
 .SH "SHELL COMPLETIONS"
 .SS "ZSH"
 There are no shell completions yet (contributions welcome) but for zsh it is possible to automatically create completions from \fB\-\-help\fR which might work good enough\.

man/go-sendxmpp.1.html

@@ -57,6 +57,7 @@
     <a href="#SYNOPSIS">SYNOPSIS</a>
     <a href="#DESCRIPTION">DESCRIPTION</a>
     <a href="#OPTIONS">OPTIONS</a>
+    <a href="#ENVIRONMENT-VARIABLES">ENVIRONMENT VARIABLES</a>
     <a href="#SHELL-COMPLETIONS">SHELL COMPLETIONS</a>
     <a href="#CHAT">CHAT</a>
     <a href="#AUTHOR">AUTHOR</a>
@@ -204,6 +205,18 @@ to prevent downgrade attacks (needs server support).</dd>
 <dd>Show version information.</dd>
 </dl>
 
+<h2 id="ENVIRONMENT-VARIABLES">ENVIRONMENT VARIABLES</h2>
+
+<h3 id="HTTP_PROXY">HTTP_PROXY</h3>
+
+<p>A SOCKS5 proxy can be used by setting the environment variable <code>HTTP_PROXY</code>. This feature is considered experimental
+and there is no guarantee that there won't be any connections not using the proxy although it didn't happen during
+testing.</p>
+
+<p><code>
+HTTP_PROXY="socks5://127.0.0.1:9050" go-sendxmpp --http-upload file.txt user@example.org
+</code></p>
+
 <h2 id="SHELL-COMPLETIONS">SHELL COMPLETIONS</h2>
 
 <h3 id="ZSH">ZSH</h3>

man/go-sendxmpp.1.ronn

@@ -129,6 +129,18 @@ Username for XMPP account (JID).
 * `--version`:
 Show version information.
 
+## ENVIRONMENT VARIABLES
+
+### HTTP_PROXY
+
+A SOCKS5 proxy can be used by setting the environment variable `HTTP_PROXY`. This feature is considered experimental
+and there is no guarantee that there won't be any connections not using the proxy although it didn't happen during
+testing.
+
+```
+HTTP_PROXY="socks5://127.0.0.1:9050" go-sendxmpp --http-upload file.txt user@example.org
+```
+
 ## SHELL COMPLETIONS
 
 ### ZSH