update-index: fix a memleak

diff --git a/t/t5515-fetch-merge-logic.sh b/t/t5515-fetch-merge-logic.sh
index 1f4608d8ba4748a2bd5c7a3d5a75a04364e8f646..dbb927dec8ea9f40e8e106f416c276f1b6a07868 100755 (executable)
--- a/t/t5515-fetch-merge-logic.sh
+++ b/t/t5515-fetch-merge-logic.sh
@@ -129,8 +129,7 @@ do
        '' | '#'*) continue ;;
        esac
        test=`echo "$cmd" | sed -e 's|[/ ][/ ]*|_|g'`
-       cnt=`expr $test_count + 1`
-       pfx=`printf "%04d" $cnt`
+       pfx=`printf "%04d" $test_count`
        expect_f="$TEST_DIRECTORY/t5515/fetch.$test"
        actual_f="$pfx-fetch.$test"
        expect_r="$TEST_DIRECTORY/t5515/refs.$test"