10080 smatch Makefile changes for usr/src/cmd

*** 20,38 ****
--- 20,42 ----
  # CDDL HEADER END
  #
  #
  # Copyright (c) 1989 by Sun Microsystems, Inc.
  #
+ # Copyright (c) 2018, Joyent, Inc.
  
  PROG= units
  UNITTAB=unittab
  
  include ../Makefile.cmd
  
  CERRWARN += -_gcc=-Wno-parentheses
  CERRWARN += -_gcc=-Wno-implicit-function-declaration
  
+ # not linted
+ SMATCH=off
+ 
  LIBUNITTAB= $(UNITTAB:%=$(ROOTSHLIB)/%)
  $(LIBUNITTAB) :=        FILEMODE =      $(LIBFILEMODE)
  
  .KEEP_STATE: