kept for compatibility with 4.4BSD behavior.
- Sync SYNOPSIS with usage().
- Use an alternative way to represent short and long options which have
same semantics.
Reviewed by: gabor
compatibility level with the GNU counterparts and have shown to be mature
enough. For now, the GNU versions aren't removed from the tree, just detached
from the build.
Sponsored by: Google Summer of Code 2008
Portbuild run by: erwin
Approved by: delphij
