--- a/tests/test-bisect
+++ b/tests/test-bisect
@@ -17,7 +17,7 @@ while test $count -lt 32 ; do
test $count -eq 0 && hg add
hg ci -m "msg $count" -d "$count 0"
echo % committed changeset $count
- count=$(( $count + 1 ))
+ count=`expr $count + 1`
done
echo % log