From fdda99c6eedfbf6ea95576d09dc7aea8ad65673d Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Mon, 12 Jun 2023 09:25:48 +0200
Subject: [PATCH] CURLOPT_INFILESIZE.3: mention -1 triggers chunked

Ref: #11300
Closes #11304
---
 docs/libcurl/opts/CURLOPT_INFILESIZE.3 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/docs/libcurl/opts/CURLOPT_INFILESIZE.3 b/docs/libcurl/opts/CURLOPT_INFILESIZE.3
index 4a52b503d3..86961de5e8 100644
--- a/docs/libcurl/opts/CURLOPT_INFILESIZE.3
+++ b/docs/libcurl/opts/CURLOPT_INFILESIZE.3
@@ -42,6 +42,9 @@ mandatory.
 
 To unset this value again, set it to -1.
 
+Using \fICURLOPT_UPLOAD(3)\fP to a HTTP/1.1 server and this value set to -1,
+makes libcurl do a chunked transfer-encoded upload.
+
 When sending emails using SMTP, this command can be used to specify the
 optional SIZE parameter for the MAIL FROM command.