Update libcurl

Engine/lib/curl/docs/cmdline-opts/request.d

@@ -0,0 +1,46 @@
+c: Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Long: request
+Short: X
+Arg: <method>
+Help: Specify request method to use
+Category: connection
+Example: -X "DELETE" $URL
+Example: -X NLST ftp://example.com/
+Added: 6.0
+See-also: request-target
+---
+(HTTP) Specifies a custom request method to use when communicating with the
+HTTP server. The specified request method will be used instead of the method
+otherwise used (which defaults to GET). Read the HTTP 1.1 specification for
+details and explanations. Common additional HTTP requests include PUT and
+DELETE, but related technologies like WebDAV offers PROPFIND, COPY, MOVE and
+more.
+
+Normally you do not need this option. All sorts of GET, HEAD, POST and PUT
+requests are rather invoked by using dedicated command line options.
+
+This option only changes the actual word used in the HTTP request, it does not
+alter the way curl behaves. So for example if you want to make a proper HEAD
+request, using -X HEAD will not suffice. You need to use the --head option.
+
+The method string you set with --request will be used for all requests, which
+if you for example use --location may cause unintended side-effects when curl
+does not change request method according to the HTTP 30x response codes - and
+similar.
+
+(FTP)
+Specifies a custom FTP command to use instead of LIST when doing file lists
+with FTP.
+
+(POP3)
+Specifies a custom POP3 command to use instead of LIST or RETR.
+(Added in 7.26.0)
+
+(IMAP)
+Specifies a custom IMAP command to use instead of LIST. (Added in 7.30.0)
+
+(SMTP)
+Specifies a custom SMTP command to use instead of HELP or VRFY. (Added in 7.34.0)
+
+If this option is used several times, the last one will be used.