10080 smatch Makefile changes for usr/src/cmd

*** 21,30 ****
--- 21,31 ----
  #
  #
  # Copyright 1989,2003 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
+ # Copyright (c) 2018, Joyent, Inc.
  
  FSTYPE=         ufs
  LIBPROG=        volcopy
  ATTMK=          $(LIBPROG)
  
*** 32,41 ****
--- 33,45 ----
  
  CERRWARN +=     -_gcc=-Wno-implicit-function-declaration
  CERRWARN +=     -_gcc=-Wno-unused-variable
  CERRWARN +=     -_gcc=-Wno-uninitialized
  
+ # not linted
+ SMATCH=off
+ 
  LDLIBS +=       -lmapmalloc
  
  # for messaging catalog
  #
  POFILE=         volcopy.po