10075 make usr/src/tools smatch clean

*** 10,19 ****
--- 10,20 ----
  #
  
  #
  # Copyright 2018 Toomas Soome <tsoome@me.com>
  #
+ # Copyright (c) 2018, Joyent, Inc.
  
  include         ../Makefile.tools
  
  SOFTCORE=       $(SRC)/common/ficl/softcore
  PROG=           makesoftcore
*** 21,30 ****
--- 22,34 ----
  CPPFLAGS +=     -I$(SRC)/lib/libficl -I$(SRC)/common/ficl
  OBJS=           makesoftcore.o lz4.o
  SRCS=           makesoftcore.c lz4.c
  LDLIBS=         -lumem
  
+ # not linted
+ SMOFF += all_func_returns
+ 
  .KEEP_STATE:
  
  all:            $(PROG)
  
  install:        all .WAIT $(ROOTONBLDMACHPROG)