test, do not run suite through the eyes of the C locale
test, do not run suite through the eyes of the C locale

This reverts a patch debian maintainers thought would be useful but
it may hide leaks where code relies on libc routines.

The overall policy is still that all dateutils tools behave as if
someone set TZ to UTC, LANG to C and LC_ALL to C.

rudimeier/dateutils,rudimeier/dateutils,rudimeier/dateutils