Removed the description of the nonexistent want_fd command.  want_fd existed for only 2 weeks in 1998-1999.  It was replaced by general commands to select the set of disk drives displayed.
Removed the description of the nonexistent want_fd command.  want_fd existed
for only 2 weeks in 1998-1999.  It was replaced by general commands to
select the set of disk drives displayed.

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