.

1 files changed, 27 insertions, 3 deletions

diff --git a/utils/sush.sh b/utils/sush.sh
index 2a61fc7f..e5552006 100644
--- a/utils/sush.sh
+++ b/utils/sush.sh
@@ -1,5 +1,26 @@
 #!/bin/sh
-#  A unix-like su (one which invokes a sub-shell).
+# A unix-like su (one which invokes a sub-shell).
+#
+# Copyright (C) 1996 Free Software Foundation, Inc.
+#
+# Written by Miles Bader <miles@gnu.ai.mit.edu>
+#
+# This file is part of the GNU Hurd.
+#
+# The GNU Hurd is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2, or (at
+# your option) any later version.
+#
+# The GNU Hurd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#  
 
 ARGS_DOC="[USER|- [COMMAND [ARG...]]]"
 USAGE="Usage: $0 $ARGS_DOC"
@@ -36,10 +57,13 @@ while :; do
 	  echo "  -U USER, --avail-user=USER Add USER to the available uids"
 	  echo "      --usage                Give a short usage message"
 	  echo "  -V, --version              Print program version"
+	  echo ""
+	  echo "Unlike the traditional unix \`su' command, if USER is not specified,"
+	  echo "then the result is *no* user-ids, not uid 0."
 	  exit 0;;
 	--usage)
 	  (echo "Usage: $0 [-V?]"
-	   echo "            [-e ENTRY] [-E ENTRY] [-g GROUP] [-G GROUP] [-u USER] [-U USER]  [--envvar=ENTRY] [--envvar-default=ENTRY] [--group=GROUP] [--avail-group=GROUP][--group=GROUP] [--avail-group=GROUP] [--user=USER] [--avail-user=USER][--help] [--usage] [--version] $ARGS_DOC") |$FMT -t
+	   echo "            [-e ENTRY] [-E ENTRY] [-g GROUP] [-G GROUP] [-u USER] [-U USER]  [--envvar=ENTRY] [--envvar-default=ENTRY] [--group=GROUP] [--avail-group=GROUP][--group=GROUP] [--avail-group=GROUP] [--user=USER] [--avail-user=USER] [--help] [--usage] [--version] $ARGS_DOC") |$FMT -t
 	  exit 0;;
 	--version|-V)
 	  echo "STANDARD_HURD_VERSION_sush_"; exit 0;;
@@ -57,6 +81,6 @@ case "$needs_arg" in ?*)
   echo 1>&2 "$0: option \`$1' requires an argument"
   echo 1>&2 "Try \`$0 --help' or \`$0 --usage' for more information";
   exit 1;;
-esac  
+esac
 
 exec $LOGIN --program-name="$0" -pxSLf -aHOME -aMOTD -aUMASK -aBACKUP_SHELLS "$@"