builtin-blame: set up the work_tree before the first file access

diff --git a/t/t3800-mktag.sh b/t/t3800-mktag.sh
index 7c7e4335d6e941a79d85c11502178b36331785a2..261f199a0cb32864bbb3cf103ddd2a63e62d2590 100755 (executable)
--- a/t/t3800-mktag.sh
+++ b/t/t3800-mktag.sh
@@ -22,9 +22,9 @@ check_verify_failure () {
 # first create a commit, so we have a valid object/type
 # for the tag.
 echo Hello >A
-git-update-index --add A
+git update-index --add A
 git-commit -m "Initial commit"
-head=$(git-rev-parse --verify HEAD)
+head=$(git rev-parse --verify HEAD)
 
 ############################################################
 #  1. length check