Use error(3) function, that has gnulib portability fixes, instead of err(3)
and warn(3) family.
Reported-by: Anton Tkachev <antont@bk.ru>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
This will mean better portability, and a good reason to get rid of
various portability autotools directives which where part of this
project.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
