diff --git a/crm/pengine/regression.core.sh b/crm/pengine/regression.core.sh
index f86a0926b6..52c7daacee 100755
--- a/crm/pengine/regression.core.sh
+++ b/crm/pengine/regression.core.sh
@@ -1,178 +1,178 @@
 #!/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
  #
 
 verbose=$1
 io_dir=testcases
 diff_opts="--ignore-all-space -u -N"
 failed=.regression.failed.diff
 # zero out the error log
 > $failed
 
 num_failed=0
 function ptest() {
     if [ "x$VALGRIND_CMD" != "x" ]; then
 	ptest_cmd=`which ptest`
 
     elif [ -x ptest ]; then
 	ptest_cmd=./ptest
 
     else
 	echo No ptest executable in current directory using installed version
 	ptest_cmd=`which ptest`
     fi
     #echo $VALGRIND_CMD $ptest_cmd $*
     $VALGRIND_CMD $ptest_cmd $*
 }
 
 function do_test {
 
     base=$1; shift
     name=$1; shift
     input=$io_dir/${base}.xml
     output=$io_dir/${base}.pe.out
     expected=$io_dir/${base}.exp
     te_output=$io_dir/${base}.te.out
     te_expected=$io_dir/${base}.te.exp
     dot_output=$io_dir/${base}.pe.dot
     dot_expected=$io_dir/${base}.dot
     dot_png=$io_dir/${base}.png
 
     if [ ! -f $input ]; then
 	echo "Test $name	($base)...	Error (PE : input)";
 	num_failed=`expr $num_failed + 1`
 	return;
     fi
 
     echo "Test $base	:	$name";
     if [ "$create_mode" != "true" -a ! -f $expected ]; then
 	echo "	Error (PE : expected)";
 #	return;
     fi
 
 #    ../admin/crm_verify -X $input
     ptest -V -X $input -D $dot_output -G $output $*
     if [ $? != 0 ]; then
 	echo "	* Failed (PE : rc)";
 	num_failed=`expr $num_failed + 1`
     fi
 
     if [ -s core ]; then
 	echo "	Moved core to core.${base}";
 	num_failed=`expr $num_failed + 1`
 	rm -f core.$base
 	mv core core.$base
     fi
 
     if [ ! -s $output ]; then
 	echo "	Error (PE : no graph)";
 	num_failed=`expr $num_failed + 1`
 	rm $output
 	return;
     fi
 
     if [ ! -s $dot_output ]; then
 	echo "	Error (PE : no dot-file)";
 	num_failed=`expr $num_failed + 1`
 	rm $output
 	return;
     else
 	echo "digraph \"g\" {" > $dot_output.sort
-	sort -u $dot_output | grep -v -e ^}$ -e digraph >> $dot_output.sort
+	LC_ALL=POSIX sort -u $dot_output | grep -v -e ^}$ -e digraph >> $dot_output.sort
 	echo "}" >> $dot_output.sort
 	mv -f $dot_output.sort $dot_output
     fi
 
     if [ "$create_mode" = "true" ]; then
 	cp "$output" "$expected"
 	cp "$dot_output" "$dot_expected"
 	echo "	Created expected output (PE)" 
     fi
 
     diff $diff_opts $dot_expected $dot_output >/dev/null
     rc=$?
     if [ $rc != 0 ]; then
 	echo "	* Failed (PE : dot)";
 	diff $diff_opts $dot_expected $dot_output 2>/dev/null >> $failed
 	echo "" >> $failed
 	num_failed=`expr $num_failed + 1`
     else 
 	rm $dot_output
     fi
 
     diff $diff_opts $expected $output >/dev/null
     rc2=$?
     if [ $rc2 != 0 ]; then
 	echo "	* Failed (PE : raw)";
 	diff $diff_opts $expected $output 2>/dev/null >> $failed
 	echo "" >> $failed
 	num_failed=`expr $num_failed + 1`
     else 
 	rm $output
     fi
     
     if [ "$test_te" = "true" ]; then
 	../tengine/ttest -X $output 2> $te_output
 	
 #    if [ "$create_mode" = "true" ]; then
 	if [ "$create_mode" = "true" -a ! -f $te_expected ]; then
 	    cp "$te_output" "$te_expected"
 	fi
 	
 	if [ -f $te_expected ]; then
 	    diff $diff_opts -q $te_expected $te_output >/dev/null
 	    rc=$?
 	fi
 	
 	if [ "$create_mode" = "true" ]; then
 	    echo "Test $name	($base)...	Created expected output (PE)" 
 	elif [ ! -f $te_expected ]; then
 	    echo "==== Raw results for TE test ($base) ====" >> $failed
 	    cat $te_output 2>/dev/null >> $failed
 	elif [ "$rc" = 0 ]; then
 	    :
 	elif [ "$rc" = 1 ]; then
 	    echo "Test $name	($base)...	* Failed (TE)";
 	    diff $diff_opts $te_expected $te_output 2>/dev/null >> $failed
 	    diff $diff_opts $te_expected $te_output
 	else 
 	    echo "Test $name	($base)...	Error TE (diff: $rc)";
 	    echo "==== Raw results for test ($base) TE ====" >> $failed
 	    cat $te_output 2>/dev/null >> $failed
 	fi
     fi
     rm -f $output $te_output
 }
 
 function test_results {
     if [ $num_failed != 0 ]; then
 	if [ -s $failed ]; then
 	    if [ "$verbose" = "-v" ]; then
 		echo "Results of $num_failed failed tests...."
 		less $failed
 	    else
 		echo "Results of $num_failed failed tests are in $failed...."
 		echo "Use $0 -v to display them automatically."
 	    fi
 	else
 	    echo "$num_failed tests failed (no diff results)"
 	    rm $failed
 	fi
     fi
 }