4360 Fix SMF methods and other scripts which rely on the system shell to use /sbin/sh

*** 1,6 ****
! #!/bin/sh
  #
  # CDDL HEADER START
  #
  # The contents of this file are subject to the terms of the
  # Common Development and Distribution License (the "License").
--- 1,6 ----
! #!/sbin/sh
  #
  # CDDL HEADER START
  #
  # The contents of this file are subject to the terms of the
  # Common Development and Distribution License (the "License").
*** 25,35 ****
  #
  # Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T.
  # All rights reserved.
  #
  #
- #ident  "%Z%%M% %I%     %E% SMI"
  
  vfstab=${vfstab:=/etc/vfstab}
  
  #
  # readvfstab mount_point
--- 25,34 ----