cmdline-docs: more options converted over

docs/cmdline-opts/location.d

@@ -0,0 +1,23 @@
+Long: location
+Short: L
+Help: Follow redirects
+Protocols: HTTP
+---
+If the server reports that the requested page has moved to a different
+location (indicated with a Location: header and a 3XX response code), this
+option will make curl redo the request on the new place. If used together with
+--include or --head, headers from all requested pages will be shown. When
+authentication is used, curl only sends its credentials to the initial
+host. If a redirect takes curl to a different host, it won't be able to
+intercept the user+password. See also --location-trusted on how to change
+this. You can limit the amount of redirects to follow by using the
+--max-redirs option.
+
+When curl follows a redirect and the request is not a plain GET (for example
+POST or PUT), it will do the following request with a GET if the HTTP response
+was 301, 302, or 303. If the response code was any other 3xx code, curl will
+re-send the following request using the same unmodified method.
+
+You can tell curl to not change the non-GET request method to GET after a 30x
+response by using the dedicated options for that: --post301, --post302 and
+--post303.