bisect: use "bisect--helper" and remove "filter_skipped" function

diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh
index 9cd5a6e68563aede0e69270421b56d1904c34165..426e64e828cfe6efaa7281f30fa8d4e676265107 100755 (executable)
--- a/t/t4013-diff-various.sh
+++ b/t/t4013-diff-various.sh
@@ -101,8 +101,7 @@ do
        '' | '#'*) continue ;;
        esac
        test=`echo "$cmd" | sed -e 's|[/ ][/ ]*|_|g'`
-       cnt=`expr $test_count + 1`
-       pfx=`printf "%04d" $cnt`
+       pfx=`printf "%04d" $test_count`
        expect="$TEST_DIRECTORY/t4013/diff.$test"
        actual="$pfx-diff.$test"