10080 smatch Makefile changes for usr/src/cmd

*** 21,32 ****
  #
  #
  # Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # cmd/expand/Makefile 
! #
  
  PROG=           expand  unexpand
  SRCS=           $(PROG:=.c)
  
  include         ../Makefile.cmd
--- 21,31 ----
  #
  #
  # Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
! # Copyright (c) 2018, Joyent, Inc.
  
  PROG=           expand  unexpand
  SRCS=           $(PROG:=.c)
  
  include         ../Makefile.cmd
*** 35,44 ****
--- 34,45 ----
  POFILES= expand_cmd.po unexpand.po
  POFILE= expand.po
  
  CLOBBERFILES += expand_cmd.c
  
+ SMOFF += signed
+ 
  .KEEP_STATE:
  
  all: $(PROG)
  
  install: all $(ROOTPROG)