tests: Skip vnd(4)-based tests on vax for now

in order to avoid kernel crash described in PR port-vax/59287

Add a label because on sun a sunlabel with all zeros has no partitions.

branches: 1.14.2;
tests: replace deprecated '-s eq:...' with '-s exit:...'

make this work again

Avoid explicitly naming the raw part device with a partition letter - use
the non-partition letter variant instead.

Use the correct pathname when cleaning up the inner mount on test
failure. Fixes the ATF crash reported in PR bin/56221, but not
the issue causing the test to fail in the first place.

branches: 1.10.20;
Do not assume anything about the pseudo-disklabel of a completely zeroed
disk image. Use the raw partition and newfs -I instead.

branches: 1.9.2;
Update the test - the "official" name of the vnd configuration utility
was changed in NetBSD 7 to vndconfig(8).

branches: 1.8.26;
Workaround problem with qemu where jot 100 produce garbage otput like this

93
94
:+
:,
:-
:.
:/
100

This can't be used as name of file, change jot cmd to work in all cases.

Prevent failures from cleanup routines. Do so by only attempting to do the
cleanup if the test case did not succeed (as, when it succeeds, the cleanup
has already happened).

Adjusts tests after import of atf-0.12:

- The use.fs property is gone.
- Mark the tests/fs/t_create:attrs test as broken when using the default
unprivileged-user:_atf setting. This probably deserves a fix somehow
but I'm not sure at this point.

Properly mark some test cases as having a cleanup routine. Stupidity of
the API? Most likely; will revise it.

Fixes atf-run breaking when running t_psshfs. This does not resolve the
underlying issue though, which is atf-run getting confused trying to
unmount the temporary mount point by itself (I think). (I'm now wondering
if atf should be bothering about unmounting stuff at all. Maybe not. It is
a tricky and uncommon thing.)

atf-0.9 introduces an use.fs test-case property to allow tests to write to
their work directory. The purpose is to be able to know which tests intend
to touch the file system and to allow a minor optimization in atf-run.

Define use.fs=true for all those tests requiring it. (This highlights that
some tests currently require modifying the file system but conceptually
they shouldn't be... which leaves room for further improvements/cleanups
later :-)

Adjust tests to work with the new API in ATF 0.6.

Convert TNF licenses to new 2 clause variant

branches: 1.1.4; 1.1.8;
Convert the regress/sys/fs/tmpfs tests to the atf

This change converts all the existing regression tests in
regress/sys/fs/tmpfs to the new framework provided by atf. As a side
effect, this also moves all the tests programs in regress/sys/fs/tmpfs to
tests/fs/tmpfs.