[RFC PATCH v2 0/4] developer: support pedantic

WARNING: this will break CI with seen when merged and unless the
kwown pedantic issue still remaining from fsmonitor[0] is merged
first (expected to come in a reroll)

this series has a different subject than v1 and that is currently
tracked as cb/ci-build-pedantic, but is a reroll (even if it discards
all changes from v1) and was originally suggested by Phillip as an
alternative.

because of that, it might conflict with changes proposed by Ævar[2]
but that are still not in "seen" AFAIK and merges cleanly otherwise.

first patch was suggested[1] by Peff, so hopefully my commit message
and his assumed SoB are still worth not mixing it with patch 2 (which
has a slight different but related focus and touches the same files)
but since it is no longer a single patch, lets go wild.

patches 3 and 4 are optional and mostly for RFC, so that a solution
to any possible issue that the retiring of USE_PARENS_AROUND_GETTEXT_N
are addressed.

Carlo Marcelo Arenas Belón (3):
  developer: enable pedantic by default
  developer: add an alternative script for detecting broken N_()
  developer: move detect-compiler out of the main directory

Jeff King (1):
  developer: retire USE_PARENS_AROUND_GETTEXT_N support

 Makefile                                      | 22 +-----
 config.mak.dev                                |  7 +-
 detect-compiler => devtools/detect-compiler   |  0
 .../find_accidentally_concat_i18n_strings.pl  | 69 +++++++++++++++++++
 gettext.h                                     | 24 -------
 git-compat-util.h                             |  4 --
 6 files changed, 74 insertions(+), 52 deletions(-)
 rename detect-compiler => devtools/detect-compiler (100%)
 create mode 100755 devtools/find_accidentally_concat_i18n_strings.pl

[0] https://lore.kernel.org/git/20210809063004.73736-3-carenas@gmail.com/ (local)
[1] https://lore.kernel.org/git/YS7c3169x5Wk4PlA@coredump.intra.peff.net/ (local)
[2] https://lore.kernel.org/git/cover-v3-0.8-00000000000-20210831T132546Z-avarab@gmail.com/ (local)
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