    If vfs.nfs.diskless_valid does not exist, the conditional fails     and spews an error message we'd rather not spew.  Fixed.
    If vfs.nfs.diskless_valid does not exist, the conditional fails
    and spews an error message we'd rather not spew.  Fixed.

Submitted by:	Kevin Street <street@iname.com>

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