Performs validation of process data structures. Currently, the
    only validation available is to check free process pool packets
    for POOLCHECK-style corruption, using the same algorithm as
    the system pool allocation routines when generating a POOLCHECK
    bugcheck and system dump.

    Format

      VALIDATE PROCESS/POOL  [= {P0 | P1 | IMGACT | ALL (d)} ]

                             [/ADDRESS=pcb-address | process-name

                             | ALL | /ID=nn  | /INDEX=nn  | /NEXT

                             | /SYSTEM]

                             [/HEADER | /MAXIMUM_BYTES[=n] |

                             /SUMMARY]