10080 smatch Makefile changes for usr/src/cmd

*** 16,30 ****
  # fields enclosed by brackets "[]" replaced with your own identifying
  # information: Portions Copyright [yyyy] [name of copyright owner]
  #
  # CDDL HEADER END
  # 
- #
  # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
  # Copyright 2018 RackTop Systems.
  #
  
  FMADIR = $(SRC)/cmd/fm
  EVERDIR = $(FMADIR)/eversholt
  EVERCMNSRC = $(EVERDIR)/common
--- 16,30 ----
  # fields enclosed by brackets "[]" replaced with your own identifying
  # information: Portions Copyright [yyyy] [name of copyright owner]
  #
  # CDDL HEADER END
  #
  # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
  # Copyright 2018 RackTop Systems.
+ # Copyright (c) 2018, Joyent, Inc.
  #
  
  FMADIR = $(SRC)/cmd/fm
  EVERDIR = $(FMADIR)/eversholt
  EVERCMNSRC = $(EVERDIR)/common
*** 49,58 ****
--- 49,60 ----
  CERRWARN += -_gcc=-Wno-uninitialized
  CERRWARN += -_gcc=-Wno-unused-label
  CERRWARN += -_gcc=-Wno-parentheses
  CERRWARN += -_gcc=-Wno-switch
  
+ SMOFF += all_func_returns
+ 
  CTFCONVO = $(CTFCONVERT_O)
  CTFMRG = $(CTFMERGE) -L VERSION -o $@ $(OBJS)
  
  debug := COPTFLAG =
  debug := COPTFLAG64 =