10080 smatch Makefile changes for usr/src/cmd

*** 23,33 ****
  # Use is subject to license terms.
  #
  # Copyright 2016 Toomas Soome <tsoome@me.com>
  # Copyright 2016 Nexenta Systems, Inc.
  # Copyright 2018 OmniOS Community Edition (OmniOSce) Association.
! #
  
  PROG= bootadm
  
  SBINLINKS= $(PROG)
  
--- 23,33 ----
  # Use is subject to license terms.
  #
  # Copyright 2016 Toomas Soome <tsoome@me.com>
  # Copyright 2016 Nexenta Systems, Inc.
  # Copyright 2018 OmniOS Community Edition (OmniOSce) Association.
! # Copyright (c) 2018, Joyent, Inc.
  
  PROG= bootadm
  
  SBINLINKS= $(PROG)
  
*** 50,59 ****
--- 50,61 ----
  # behavior, which causes us to take SIGSEGV on such a write.
  CFLAGS +=       $(XSTRCONST)
  CPPFLAGS +=     -D_FILE_OFFSET_BITS=64
  CPPFLAGS +=     -I$(SRC)/uts/common -I$(SRC)/common -I$(SRC)/common/ficl
  
+ SMOFF +=        all_func_returns
+ 
  CSTD=   $(CSTD_GNU99)
  
  LINTFLAGS += -erroff=E_INCONS_ARG_DECL2
  LINTFLAGS += -erroff=E_INCONS_VAL_TYPE_DECL2
  LINTFLAGS += -erroff=E_NAME_DEF_NOT_USED2