mkhelp: rename variable to fix compiler warnings

```
src\tool_operate.c(541,33): warning C4459: declaration of 'm' hides global declaration [_bld\src\curl.vcxproj]
_bld\src\tool_hu

mkhelp: rename variable to fix compiler warnings

```
src\tool_operate.c(541,33): warning C4459: declaration of 'm' hides global declaration [_bld\src\curl.vcxproj]
_bld\src\tool_hugehelp.c(8,27):
see declaration of 'm'
src\tool_paramhlp.c(307,14): warning C4459: declaration of 'm' hides global declaration [_bld\src\curl.vcxproj]
src\tool_progress.c(118,16): warning C4459: declaration of 'm' hides global declaration [_bld\src\curl.vcxproj]
src\tool_writeout.c(288,31): warning C4459: declaration of 'm' hides global declaration [_bld\src\curl.vcxproj]
```
Ref: https://ci.appveyor.com/project/curlorg/curl/builds/49348159/job/51ee75cd2n0wj6lc#L614

Reviewed-by: Daniel Stenberg
Closes #13077

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mkhelp: simplify the generated hugehelp program

Use a plain array and puts() every line, also allows us to provide the
strings without ending newlines.

- merge blank lines into

mkhelp: simplify the generated hugehelp program

Use a plain array and puts() every line, also allows us to provide the
strings without ending newlines.

- merge blank lines into the next one as a prefixed newline.
- turn eight consecutive spaces into a tab (since they can only be on the
left side of text)
- the newly generated tool_hugehelp is 3K lines shorter and 50K smaller
- modifies the top logo layout a little by reducing the indent

Closes #13047

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docs: ascii version of manpage without nroff

Create ASCII version of manpage without nroff

- build src/tool_hugegelp.c from the ascii manpage
- move the the manpage and the as

docs: ascii version of manpage without nroff

Create ASCII version of manpage without nroff

- build src/tool_hugegelp.c from the ascii manpage
- move the the manpage and the ascii version build to docs/cmdline-opts
- remove all use of nroff from the build process
- should make the build entirely reproducible (by avoiding nroff)

- partly reverts 2620aa9 to build libcurl option man pages one by one
in cmake because the appveyor builds got all crazy until I did

The ASCII version of the manpage

- is built with gen.pl, just like the manpage is
- has a right-justified column making the appearance similar to the previous
version
- uses a 4-space indent per level (instead of the old version's 7)
- does not do hyphenation of words (which nroff does)

History

We first made the curl build use nroff for building the hugehelp file in
December 1998, for curl 5.2.

Closes #13047

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src/mkhelp: make generated code pass `checksrc`

Closes #11955

src/mkhelp: strip off escape sequences

At some point the nroff command stopped stripping off escape sequences,
so then this script needs to do the job instead.

Reported-by: Vict

src/mkhelp: strip off escape sequences

At some point the nroff command stopped stripping off escape sequences,
so then this script needs to do the job instead.

Reported-by: VictorVG on github
Fixes #11501
Closes #11503

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copyright: update all copyright lines and remove year ranges

- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- save

copyright: update all copyright lines and remove year ranges

- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- saves us from pointless churn
- git keeps history for us
- the year range is kept in COPYING

checksrc is updated to allow non-year using copyright statements

Closes #10205

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tool_hugehelp: make hugehelp a blank macro when disabled

Closes #9485

copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the

copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869

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copyright: fix year ranges

Follow-up from 4d2f8006777

curl.se: new home

Closes #6172

curl: remove MANUAL from -M output

... and remove it from the dist tarball. It has served its time, it
barely gets updated anymore and "everything curl" is now convering all
this doc

curl: remove MANUAL from -M output

... and remove it from the dist tarball. It has served its time, it
barely gets updated anymore and "everything curl" is now convering all
this document once tried to include, and does it more and better.

In the compressed scenario, this removes ~15K data from the binary,
which is 25% of the -M output.

It remains in the git repo for now for as long as the web site builds a
page using that as source. It renders poorly on the site (especially for
mobile users) so its not even good there.

Closes #3587

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mkhelp.pl: support reproducible build

Do not generate line with the current date, such as:

* Generation time: Tue Oct-24 18:01:41 2017

This will improve reproducibility. Th

mkhelp.pl: support reproducible build

Do not generate line with the current date, such as:

* Generation time: Tue Oct-24 18:01:41 2017

This will improve reproducibility. The generated string is only
part of a comment, so there should be no adverse consequences.

Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>

closes #2026

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mkhelp.pl: allow executing this script directly

- Enable execute permission (chmod +x)

- Change interpreter to /usr/bin/env perl

Ref: https://github.com/curl/curl/issues/17

mkhelp.pl: allow executing this script directly

- Enable execute permission (chmod +x)

- Change interpreter to /usr/bin/env perl

Ref: https://github.com/curl/curl/issues/1743

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mkhelp.pl: fix script name in usage text

mkhelp.pl: do not add current time into curl binary

... as part of hugehelpgz rodata to make build reproducible.

See https://reproducible-builds.org/ for why this is good

C

mkhelp.pl: do not add current time into curl binary

... as part of hugehelpgz rodata to make build reproducible.

See https://reproducible-builds.org/ for why this is good

Closes #1490

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mkhelp: disable compression if the perl gzip module is unavailable

This is nowadays included with the base perl distribution, but wasn't
prior to about perl 5.14

mkhelp: simplified the gzip code

This eliminates the need for an external gzip program, which wasn't
working with Busybox's gzip, anyway. It now compresses using perl's
IO::Compress:

mkhelp: simplified the gzip code

This eliminates the need for an external gzip program, which wasn't
working with Busybox's gzip, anyway. It now compresses using perl's
IO::Compress::Gzip

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URLs: change all http:// URLs to https://

mkhelp: Remove trailing carriage return from every line of input

- Get rid of this flood of warnings in Windows mingw build:
warning: missing terminating " character

The warning

mkhelp: Remove trailing carriage return from every line of input

- Get rid of this flood of warnings in Windows mingw build:
warning: missing terminating " character

The warning is due to the carriage return. When msysgit checks out files
from the repo by default it converts the line endings to CRLF. Prior to
this change when mkhelp.pl processed the MANUAL and curl.1 in CRLF
format the trailing carriage returns caused unnecessary CR in the
output.

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mkhelp: generate code for --disable-manual as well

This allows configure --disable-manual to run and build without having
to regenerate the src/tool_hugehelp.c file which otherwise is ne

mkhelp: generate code for --disable-manual as well

This allows configure --disable-manual to run and build without having
to regenerate the src/tool_hugehelp.c file which otherwise is necessary
since we ship tarballs with that file present.

Reported-by: Remi Gacogne
Bug: http://curl.haxx.se/bug/view.cgi?id=1350

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Revert changes relative to lib/*.[ch] recent renaming

This reverts renaming and usage of lib/*.h header files done
28-12-2012, reverting 2 commits:

f871de0... build: make use

Revert changes relative to lib/*.[ch] recent renaming

This reverts renaming and usage of lib/*.h header files done
28-12-2012, reverting 2 commits:

f871de0... build: make use of 76 lib/*.h renamed files
ffd8e12... build: rename 76 lib/*.h files

This also reverts removal of redundant include guard (redundant thanks
to changes in above commits) done 2-12-2013, reverting 1 commit:

c087374... curl_setup.h: remove redundant include guard

This also reverts renaming and usage of lib/*.c source files done
3-12-2013, reverting 3 commits:

13606bb... build: make use of 93 lib/*.c renamed files
5b6e792... build: rename 93 lib/*.c files
7d83dff... build: commit 13606bbfde follow-up 1

Start of related discussion thread:

http://curl.haxx.se/mail/lib-2013-01/0012.html

Asking for confirmation on pushing this revertion commit:

http://curl.haxx.se/mail/lib-2013-01/0048.html

Confirmation summary:

http://curl.haxx.se/mail/lib-2013-01/0079.html

NOTICE: The list of 2 files that have been modified by other
intermixed commits, while renamed, and also by at least one
of the 6 commits this one reverts follows below. These 2 files
will exhibit a hole in history unless git's '--follow' option
is used when viewing logs.

lib/curl_imap.h
lib/curl_smtp.h

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build: make use of 76 lib/*.h renamed files

76 private header files renamed to use our standard naming scheme.

This change affects 322 files in libcurl's source tree.

curl tool: renaming hugehelp files to tool_hugehelp

curl tool: re-enable MemoryTracking capability on 'src' subdirectory files.

Use same preprocessor logic for curl tool MemoryTracking activation in source
files located in 'src' subdirect

curl tool: re-enable MemoryTracking capability on 'src' subdirectory files.

Use same preprocessor logic for curl tool MemoryTracking activation in source
files located in 'src' subdirectory as the one used for libcurl sources.

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zlib: ensure user provided memory functions are used by zlib, when given

As a bonus, this lets our MemoryTracking subsystem track zlib operations.
And also fixes a shortcut some zlib 1.2

zlib: ensure user provided memory functions are used by zlib, when given

As a bonus, this lets our MemoryTracking subsystem track zlib operations.
And also fixes a shortcut some zlib 1.2.x versions took using malloc()
instead of calloc(), which would trigger memory debuggers warnings on
memory being used without having been initialized.

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