/[NO]FIRST

   Used with PEEK/ALLOW/CUMULATIVE to specify that the current ALLOW
   definition should be added to the front of any existing ALLOW list.

   Example: $ PEEK/ALLOW/FIRST J_DOE/BP_OUTPUT

   The above adds J_DOE/BP_OUTPUT to the beginning of any existing
   WATCHER$ALLOW list in one's LNM$JOB logical name table.

   The default value for /FIRST is taken from the logical USER$FIRST,
   usually defined system-wide by PEEK_DEFAULTS.COM.