t6036: avoid non-portable "cp -a"

diff --git a/t/README b/t/README
index 204b9f4cc5cbf8ad265423f6062cd99c24dd33d3..3ea6c854606056e1a7d9431dd59518d817768527 100644 (file)
--- a/t/README
+++ b/t/README
@@ -323,6 +323,10 @@ GIT_TEST_VALIDATE_INDEX_CACHE_ENTRIES=<boolean> checks that cache-tree
 records are valid when the index is written out or after a merge. This
 is mostly to catch missing invalidation. Default is true.
 
+GIT_TEST_COMMIT_GRAPH=<boolean>, when true, forces the commit-graph to
+be written after every 'git commit' command, and overrides the
+'core.commitGraph' setting to true.
+
 Naming Tests
 ------------