t/README: --immediate skips cleanup commands for failed tests

Signed-off-by: Simon Ruderich <simon@ruderich.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
archive: clarify explanation of --worktree-attributes

Make it a bit clearer that --worktree-attributes is about files in the
working tree (checked out files, possibly changed) and not the current
working directory ($PWD).  Link to the ATTRIBUTES section, which has
more details.

Reported-by: Amit Bakshi <ambakshi@gmail.com>
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
t: make PIPE a standard test prerequisite

The 'PIPE' test prerequisite was already defined identically by t9010
and t9300, therefore it makes sense to make it a predefined
prerequisite.

Signed-off-by: Adam Spiers <git@adamspiers.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Typo fix: replacing it's -> its

Signed-off-by: Benoit Bourbie <benoit.bourbie@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>