kbuild: replace LANG=C with LC_ALL=C

LANG gives a weak default to each LC_* in case it is not explicitly
defined. LC_ALL, if set, overrides all other LC_* variables.

  LANG  <  LC_CTYPE, LC_COLLATE, LC_MONETARY, LC_NUMERIC, ...  <  LC_ALL

This is why documentation such as [1] suggests to set LC_ALL in build
scripts to get the deterministic result.

LANG=C is not strong enough to override LC_* that may be set by end
users.

[1]: https://reproducible-builds.org/docs/locales/

Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Michael Ellerman <[email protected]> (powerpc)
Reviewed-by: Matthias Maennich <[email protected]>
Acked-by: Matthieu Baerts <[email protected]> (mptcp)
Reviewed-by: Greg Kroah-Hartman <[email protected]>

0 files changed, 0 insertions, 0 deletions