[PATCH 0/2] test_seq format option

This is a small quality of life improvement for our test suite, stemming from this discussion:

  https://lore.kernel.org/git/20240408172638.GB1629595@coredump.intra.peff.net/

But somehow it took me over a year to get back to it. :-/

The first patch is a small cleanup in nearby code; the second one is the interesting part.

  [1/2]: t7422: replace confusing printf with echo
  [2/2]: test-lib: teach test_seq the -f option

 t/t0021-conversion.sh                  |  4 ++--
 t/t0610-reftable-basics.sh             |  6 +-----
 t/t0612-reftable-jgit-compatibility.sh | 13 +++++--------
 t/t0613-reftable-write-options.sh      | 24 ++++--------------------
 t/t1400-update-ref.sh                  | 10 ++--------
 t/t5004-archive-corner-cases.sh        |  5 +----
 t/t6422-merge-rename-corner-cases.sh   | 10 ++--------
 t/t7422-submodule-output.sh            |  9 +++------
 t/test-lib-functions.sh                |  9 ++++++++-
 9 files changed, 28 insertions(+), 62 deletions(-)

-Peff