tests: Fix Windows test helper tool search & use it for handle64

The checkcmd() and checktestcmd() functions would not have worked on
Windows due to hard-coding the UNIX PATH separator c

tests: Fix Windows test helper tool search & use it for handle64

The checkcmd() and checktestcmd() functions would not have worked on
Windows due to hard-coding the UNIX PATH separator character and not
adding .exe file extension. This meant that tools like stunnel, valgrind
and nghttpx would not have been found and used on Windows, and
inspection of previous test runs show none of those being found in pure
Windows CI builds.

With this fixed, they can be used to detect the handle64.exe program
before attempting to use it. When handle64.exe was called
unconditionally without it existing, it caused perl to abort the test
run with the error

The running command stopped because the preference variable
"ErrorActionPreference" or common parameter is set to Stop:
sh: handle64.exe: command not found

Closes #12115

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pathhelp: use the cached $use_cygpath when available

tests: factor out the test server management code

This now lives in servers.pm with some configuration variables moved to
globalconfig.pm

Ref: #10818

tests: tighten up perl exports

This reduces namespace pollution a little.

Ref: #10818

tests: turn perl modules into full packages

This helps enforce more modularization and encapsulation. Enable and fix
warnings on a few packages. Also, rename ftp.pm to processhelp.pm si

tests: turn perl modules into full packages

This helps enforce more modularization and encapsulation. Enable and fix
warnings on a few packages. Also, rename ftp.pm to processhelp.pm since
there's really nothing ftp-specific in it.

Ref: #10818

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tests: silence some Perl::Critic warnings in test suite

Not all warnings are fixed; many are as much stylistic suggestions than
anything and IMHO don't do much to actually improve the co

tests: silence some Perl::Critic warnings in test suite

Not all warnings are fixed; many are as much stylistic suggestions than
anything and IMHO don't do much to actually improve the code.

Ref: #10818
Closes #10861

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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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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: update copyright year ranges to 2021

Reviewed-by: Emil Engler
Closes #6802

pathhelp.pm: fix use of pwd -L in Msys environment

While Msys2 has a pwd binary which supports -L,
Msys1 only has a shell built-in with that feature.

Reviewed-by: Jay Satiro

pathhelp.pm: fix use of pwd -L in Msys environment

While Msys2 has a pwd binary which supports -L,
Msys1 only has a shell built-in with that feature.

Reviewed-by: Jay Satiro

Part of #6179

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curl.se: new home

Closes #6172

copyright: fix out-of-date copyright ranges and missing headers

Reported by the new script 'scripts/copyright.pl'. The script has a
regex whitelist for the files that don't need copyrigh

copyright: fix out-of-date copyright ranges and missing headers

Reported by the new script 'scripts/copyright.pl'. The script has a
regex whitelist for the files that don't need copyright headers.

Removed three (mostly usesless) README files from docs/

Closes #5141

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whitespace fixes

- replace tabs with spaces where possible
- remove line ending spaces
- remove double/triple newlines at EOF
- fix a non-UTF-8 character
- cleanup a few inde

whitespace fixes

- replace tabs with spaces where possible
- remove line ending spaces
- remove double/triple newlines at EOF
- fix a non-UTF-8 character
- cleanup a few indentations/line continuations
in manual examples

Closes https://github.com/curl/curl/pull/3037

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spelling fixes

Detected using the `codespell` tool.

Also contains one URL protocol upgrade.

Closes https://github.com/curl/curl/pull/2334

s/cURL/curl

We're mostly saying just "curl" in lower case these days so here's a big
cleanup to adapt to this reality. A few instances are left as the
project could still formally be

s/cURL/curl

We're mostly saying just "curl" in lower case these days so here's a big
cleanup to adapt to this reality. A few instances are left as the
project could still formally be considered called cURL.

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tests: pathhelp.pm to process paths on Msys/Cygwin