exit_status=0
trap "rm -f $tmp1 $tmp2 $now_s $before_s" 0 1 2 3 5 9 13 15
-sort -t ':' +1 "$now" > "$now_s"
-sort -t ':' +1 "$before" > "$before_s"
+if sort -k 2 </dev/null >/dev/null 2>&1; then
+ skip1='-k 2'
+else
+ skip1='+1'
+fi
+
+sort -t ':' $skip1 "$now" > "$now_s"
+sort -t ':' $skip1 "$before" > "$before_s"
grep '^FAIL:' "$now_s" | sed 's/^[^:]*:[ ]//' >$tmp1
grep '^PASS' "$before_s" | sed 's/^[^:]*:[ ]//' | comm -12 $tmp1 - >$tmp2