At the request of several developers, restore the DIAGNOSIC code deleted in 1.81. Increase the initial timeout limit to 2ms to eliminate spurious messages of excessive timeouts in the NFS client code.
At the request of several developers, restore the DIAGNOSIC code
deleted in 1.81. Increase the initial timeout limit to 2ms to
eliminate spurious messages of excessive timeouts in the NFS
client code.

Requested by:	Poul-Henning Kamp <phk@phk.freebsd.dk>
Requested by:	Mike Silbersack <silby@silby.com>
Requested by:	Sam Leffler <sam@errno.com>

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase