Extend the CI checkstyle workflow to perform the library ABI
checks in the master branch.  The intent is not to prevent any
ABI changes but to detect them immediately so when they're
made it's done intentionally.

When the changing the ABI the `make storeabi` target can be
used to generate a new .abi file which can be included with
the commit.  This depends on the libabigail utility which is
available from the majority of distribution package managers.
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11287 

As mentioned in the #OpenZFS IRC channel (thanks "Toomas Soome"):
The OpenZFS PR Template still mentions "ZFS on Linux".
This changes that reference and updates the URLs.
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Garrett Fields <ghfields@gmail.com>
Closes #10868 

Use direct links to new documentation resource.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #10395 

- Splits PR advice into two sections.
- Add "co-authored-by" instructions.
- Add description of draft PR and when using it is appropriate.
- Reword ZFS Test Suite checklist question.
- Link to zfs-tests.sh and zloop.sh.
Reviewed-By: Marcel Schilling <marcel.schilling@mdc-berlin.de>
Reviewed-By: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-By: Richard Laager <rlaager@wiktel.com>
Co-Authored-By: Marcel Schilling <marcel.schilling@mdc-berlin.de>
Co-Authored-By: Brian Behlendorf <behlendorf1@llnl.gov>
Co-Authored-By: Richard Laager <rlaager@wiktel.com>
Signed-off-by: Kjeld Schouten-Lebbing <kjeld@schouten-lebbing.nl>
Closes #9753 

Occasionally we get issues and PRs from users who delete the
templates.  Advise users that their issues and PRs may be closed if
they do not fill out the templates as we really need this information.

Also updating PR template to drop unneeded approval toggle as we are
now using issue labels for status tracking.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: bunder2015 <omfgbunder@gmail.com>
Closes #8029 

It's often necessary to understand why a change is made, before
understanding the exact changes that are made.  Context provides
background, which by definition is necessary to understand prior to the
substance of the Pull Request.

Change the PR template to request "Motivation and Context" first, before
"Description".
Reviewed-by: Giuseppe Di Natale <guss80@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #7737 

- Add links to PULL_REQUEST_TEMPLATE.md
- Clean `System information` table

It's easier to find needes documentation about
PR process with links.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Giuseppe Di Natale <guss80@gmail.com>
Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #7539 

Add links for information about the ZFS buildbot options
to the contributing guidelines and PR template.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #6235 

Add the need to have a commit message with a specific
format to the contributing guidelines. Provide a script
to help enforce commit message style.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #5943 

Guidelines for developers and users describing how they can
participle in the project.
Reviewed-by: Manuel Mendez <mmendez534@gmail.com>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #672 
Closes #4776  
Closes #5361