mount_nfs not accepting syntax specified by its usage complaint

[perryh at pluto.rain.com]

> option 'g' has been "removed temporarily", but usage() hasn't
> been updated accordingly.

Aha!  Removing the "-g 8" fixed it, and the 512-byte read and readdir
restrictions seem to be working well (albeit slowly).

That a "temporary" removal present in 7.0 has been there at least
since 6.1 reminds me of an OS/360 PTF, which officially stood for
"Program Temporary Fix" but was sometimes reputed to actually mean
"Permanent Temporary Fix".

Is there any realistic prospect of the -g option being restored in
the near future?  If not, perhaps I should submit a patch to update
the usage() and manpage.