10080 smatch Makefile changes for usr/src/cmd

*** 21,30 ****
--- 21,31 ----
  #
  #
  # Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
+ # Copyright (c) 2018, Joyent, Inc.
  
  PROG= bc
  XPG6PROG= bc
  XD= exobjs.xpg6
  EXOBJS= bc.o
*** 37,46 ****
--- 38,50 ----
  
  CERRWARN += -_gcc=-Wno-implicit-function-declaration
  CERRWARN += -_gcc=-Wno-parentheses
  CERRWARN += -_gcc=-Wno-unused-label
  
+ # nothing lintable
+ SMATCH=off
+ 
  $(XPG6EXOBJS) := CFLAGS += -DXPG6
  ROOTLIBB= $(LIBB:%=$(ROOTLIB)/%)
  $(ROOTLIBB) :=  FILEMODE =      $(LIBFILEMODE)
  
  .KEEP_STATE: