Mention that sftp quote commands can be quoted

diff --git a/docs/curl.1 b/docs/curl.1
index 33b5e0269ba240cf53dacd8f0c526b4b31e484ab..ba7f6108cbebcdd49450dff8c4340ff1cb660265 100644 (file)
--- a/docs/curl.1
+++ b/docs/curl.1
@@ -1056,7 +1056,8 @@ RFC 959 defines to FTP servers, or one of the commands listed below to
 SFTP servers.  This option can be used multiple times.
 
 SFTP is a binary protocol. Unlike for FTP, libcurl interprets SFTP quote
-commands before sending them to the server.  Following is the list of
+commands itself before sending them to the server.  File names may be quoted
+shell-style to embed spaces or special characters.  Following is the list of
 all supported SFTP quote commands:
 .RS
 .IP "chgrp group file"