I fixed some issues in #2753 for the tr PR ( #2502 )

but we still have this one

./tests/misc/sort-float.sh: line 58: warning: setlocale: LC_ALL: cannot change locale (none): No such file or directory

Core: https://github.com/coreutils/coreutils/blob/master/tests/misc/sort-float.sh#L58