printf '0\n' >"$expected"
fmttest -raw -format '%(sday{text})' 'Sep 12 20:02 2014' >"$actual"
check "$expected" "$actual"
# check negative number, without padding
printf '0\n' >"$expected"
fmttest -raw -format '%(sday{text})' 'Sep 12 20:02 2014' >"$actual"
check "$expected" "$actual"
# check negative number, without padding