Refactor cache_tree_update idiom from commit

diff --git a/t/t1013-loose-object-format.sh b/t/t1013-loose-object-format.sh
index f45702c45c38dcf75e45051e1ba3842533551f0a..0a9cedd374012f6cdb5b2658639c4168a8cdf159 100755 (executable)
--- a/t/t1013-loose-object-format.sh
+++ b/t/t1013-loose-object-format.sh
@@ -26,8 +26,6 @@ standard format, deflated with 4KB window size: Agit/JGit on Android
 '
 
 . ./test-lib.sh
-LF='
-'
 
 assert_blob_equals() {
        printf "%s" "$2" >expected &&