Prior to this change the required argument was not shown.

curl.1 before: --stderr
curl.1 after: --stderr <file>

curl --help before:
     --stderr        Where to redirect stderr

curl --help after:
     --stderr <file>  Where to redirect stderr

Closes https://github.com/curl/curl/pull/6692

- Increase the minimum number of spaces between the option and the
  description from 1 to 2.

Before:
~~~
 -u, --user <user:password> Server user and password
 -A, --user-agent <name> Send User-Agent <name> to server
 -v, --verbose       Make the operation more talkative
 -V, --version       Show version number and quit
 -w, --write-out <format> Use output FORMAT after completion
     --xattr         Store metadata in extended file attributes
~~~

After:
~~~
 -u, --user <user:password>  Server user and password
 -A, --user-agent <name>  Send User-Agent <name> to server
 -v, --verbose       Make the operation more talkative
 -V, --version       Show version number and quit
 -w, --write-out <format>  Use output FORMAT after completion
     --xattr         Store metadata in extended file attributes
~~~

Closes https://github.com/curl/curl/pull/6674

- New libcurl options CURLOPT_DOH_SSL_VERIFYHOST,
  CURLOPT_DOH_SSL_VERIFYPEER and CURLOPT_DOH_SSL_VERIFYSTATUS do the
  same as their respective counterparts.

- New curl tool options --doh-insecure and --doh-cert-status do the same
  as their respective counterparts.

Prior to this change DOH SSL certificate verification settings for
verifyhost and verifypeer were supposed to be inherited respectively
from CURLOPT_SSL_VERIFYHOST and CURLOPT_SSL_VERIFYPEER, but due to a bug
were not. As a result DOH verification remained at the default, ie
enabled, and it was not possible to disable. This commit changes
behavior so that the DOH verification settings are independent and not
inherited.

Ref: https://github.com/curl/curl/pull/4579#issuecomment-554723676

Fixes https://github.com/curl/curl/issues/4578
Closes https://github.com/curl/curl/pull/6597

Closes #6592

Prevent both --fail and --fail-with-body on the same command line.

Verify with test 349, 360 and 361.

Closes #6449

Prior to this change the required argument was not shown in curl --help.

before:
     --create-file-mode File mode for created files

after:
     --create-file-mode <mode> File mode (octal) for created files

Reported-by: ZimCodes@users.noreply.github.com

Fixes https://github.com/curl/curl/issues/6590

- Add support services without region and service prefixes in
the URL endpoint (ex. Min.IO, GCP, Yandex Cloud, Mail.Ru Cloud Solutions, etc)
by providing region and service parameters via aws-sigv4 option.
- Add [:region[:service]] suffix to aws-sigv4 option;
- Fix memory allocation errors.
- Refactor memory management.
- Use Curl_http_method instead() STRING_CUSTOMREQUEST.
- Refactor canonical headers generating.
- Remove repeated sha256_to_hex() usage.
- Add some docs fixes.
- Add some codestyle fixes.
- Add overloaded strndup() for debug - curl_dbg_strndup().
- Update tests.

Closes #6524

This commit bumps the help to the current state of the project.

Closes #6437

Signed-off-by: Matthias Gatto <matthias.gatto@outscale.com>

This option sets the (octal) mode to use for the remote file when one is
created, using the SFTP, SCP or FILE protocols. When not set, the
default is 0644.

Closes #6244