10080 smatch Makefile changes for usr/src/cmd

*** 21,30 ****
--- 21,31 ----
  #
  #
  # Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
+ # Copyright (c) 2018, Joyent, Inc.
  
  PROG= tabs
  
  include ../Makefile.cmd
  
*** 31,40 ****
--- 32,44 ----
  LDLIBS += -lcurses
  CFLAGS += $(CCVERBOSE)
  CERRWARN += -_gcc=-Wno-parentheses
  CERRWARN += -_gcc=-Wno-address
  
+ # not linted
+ SMATCH=off
+ 
  .KEEP_STATE:
  
  all: $(PROG)
  
  install: all $(ROOTPROG)