David E. O'Brien d6e3a23dbc Clean up the -j/-y/--bzip entry in usage().
Add the -U and --unlink-first options which are the offical verions of our
--unlink localism.
Add support for the "TAR_OPTIONS" environmental variable.

Obtained from:	GNU tar 1.13.18
2000-12-24 10:52:23 +00:00
..
1999-08-27 23:37:10 +00:00
2000-12-09 09:35:55 +00:00
1999-08-27 23:37:10 +00:00
1999-08-27 23:37:10 +00:00