Text set in Portuguese ("Portuguese: Brazilian", "Portuguese", pt_BR) got
no hyphenation, so justified Portuguese columns could only stretch their
word spaces (up to 335 % of the normal space in a 56 mm column of 10 pt
Times).
Turn on hypher's "portuguese" feature, beside Spanish: hyph-pt.tex 1.4
(2024-07-13) from hyph-utf8, BSD-3-Clause, credited in NOTICE.
Lang::for_language already maps the Portuguese names and locale codes.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>