38839c872e
Add support for a field width, which defaults to 9 if unspecified or zero. If the width is not exactly 9, we have to either cut off digits or append zeroes to make up the difference. If the width is a dash, we pick a width based on the clock's reported resolution. This brings us in line with GNU coreutils. PR: 287080 MFC after: 1 week Reviewed by: 0mp Differential Revision: https://reviews.freebsd.org/D53667