- The wording in the exportfs man page can be a bit confusing, implying
that "exportfs -u :/foo" will unexport /foo from all hosts, which it
won't
- Removed nfsprog option since the kernel no longer supports it.
- Removed mountprog option since the kernel no longer supports it.
- Stop segfaults on amd64 during warnings messages.
- Fix bug when both crossmnt and fsid are set.
