diff --git a/crm/pengine/regression.sh b/crm/pengine/regression.sh
index 4343bd6625..3f6a72072d 100755
--- a/crm/pengine/regression.sh
+++ b/crm/pengine/regression.sh
@@ -1,72 +1,72 @@
 #!/bin/bash
 
  # Copyright (C) 2004 Andrew Beekhof <andrew@beekhof.net>
  # 
  # This program 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 2.1 of the License, or (at your option) any later version.
  # 
  # This software 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 library; if not, write to the Free Software
  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  #
 
 io_dir=testcases
 diff_opts="--ignore-all-space  --minimal"
-cat /dev/null > regression.failed
+> regression.failed
 
 function do_test {
 
     base=$1;
     name=$2;
     input=$io_dir/${base}.in
     output=$io_dir/${base}.out
     expected=$io_dir/${base}.exp
 
     if [ ! -f $input ]; then
 	echo "Test $name ($base)...	Error (no input: $input)";
 	return;
     fi
 
     if [ ! -f $expected ]; then
 	echo "Test $name ($base)...	Error (expected output: $expected)";
 	return;
     fi
 
     ./ptest < $input 2>/dev/null 2>/dev/null > $output
 
     if [ ! -f $output ]; then
 	echo "Test $name ($base)...	Error (pe output)";
 	return;
     fi
 
     ./fix_xml.pl $output
 
     if [ ! -f $output ]; then
 	echo "Test $name ($base)...	Error (fixed output)";
 	return;
     fi
 
     diff $diff_opts -q $expected $output
     rc=$?
 
     if [ "$rc" = 0 ]; then
 	echo "Test $name ($base)...	Passed";
     elif [ "$rc" = 1 ]; then
 	echo "Test $name ($base)...	Failed";
 	diff $diff_opts -C 1 $expected $output >> regression.failed
     else
 	echo "Test $name ($base)...	Error (diff rc=$rc)";
     fi
     
     rm $output
 }
 
 do_test t1 "Simple"
 do_test cib1 "Simple"