10080 smatch Makefile changes for usr/src/cmd

*** 20,29 ****
--- 20,30 ----
  #
  #
  # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
+ # Copyright (c) 2018, Joyent, Inc.
  
  PROG=           zstreamdump
  OBJS=           zstreamdump.o
  SRCS=           $(OBJS:%.o=%.c)
  POFILE=         zstreamdump.po
*** 45,54 ****
--- 46,58 ----
  LINTFLAGS += -xerroff=E_NAME_DEF_NOT_USED2 
  LINTFLAGS64 += -xerroff=E_NAME_DEF_NOT_USED2 
  
  CERRWARN += -_gcc=-Wno-switch
  
+ # not linted
+ SMATCH=off
+ 
  .KEEP_STATE:
  
  .PARALLEL:
  
  all: $(PROG)