cmdline-opts: language cleanups

Use imperative mood consistently for the first sentence describing an
option.

"Set this" instead "tell curl to set" or "this sets..."

Pl

cmdline-opts: language cleanups

Use imperative mood consistently for the first sentence describing an
option.

"Set this" instead "tell curl to set" or "this sets..."

Plus some extra cleanups and rephrasing.

Closes #13106

show more ...

paramhlp: fix CRLF-stripping files with "-d @file"

All CR and LF bytes should be stripped, as documented, and all other
bytes are inluded in the data. Starting now, it also excludes null

paramhlp: fix CRLF-stripping files with "-d @file"

All CR and LF bytes should be stripped, as documented, and all other
bytes are inluded in the data. Starting now, it also excludes null bytes
as they would otherwise also cut the data short.

Reported-by: Simon K
Fixes #13063
Closes #13064

show more ...

docs: more language cleanups

- present tense
- avoid bad words

Closes #13003

docs/cmdline: change to .md for cmdline docs

- switch all invidual files documenting command line options into .md,
as the documentation is now markdown-looking.

- made the

docs/cmdline: change to .md for cmdline docs

- switch all invidual files documenting command line options into .md,
as the documentation is now markdown-looking.

- made the parser treat 4-space indents as quotes

- switch to building the curl.1 manpage using the "mainpage.idx" file,
which lists the files to include to generate it, instead of using the
previous page-footer/headers. Also, those files are now also .md
ones, using the same format. I gave them underscore prefixes to make
them sort separately:
_NAME.md, _SYNOPSIS.md, _DESCRIPTION.md, _URL.md, _GLOBBING.md,
_VARIABLES.md, _OUTPUT.md, _PROTOCOLS.md, _PROGRESS.md, _VERSION.md,
_OPTIONS.md, _FILES.md, _ENVIRONMENT.md, _PROXYPREFIX.md,
_EXITCODES.md, _BUGS.md, _AUTHORS.md, _WWW.md, _SEEALSO.md

- updated test cases accordingly

Closes #12751

show more ...