update-index: use enum for untracked cache options

diff --git a/Documentation/glossary-content.txt b/Documentation/glossary-content.txt
index 8c6478b2f2cab195dcc07f47cfc59cbace286fda..e225974253833c97980e5ff190e291c8323757c9 100644 (file)
--- a/Documentation/glossary-content.txt
+++ b/Documentation/glossary-content.txt
@@ -413,8 +413,9 @@ exclude;;
 
 [[def_per_worktree_ref]]per-worktree ref::
        Refs that are per-<<def_working_tree,worktree>>, rather than
-       global.  This is presently only <<def_HEAD,HEAD>>, but might
-       later include other unusual refs.
+       global.  This is presently only <<def_HEAD,HEAD>> and any refs
+       that start with `refs/bisect/`, but might later include other
+       unusual refs.
 
 [[def_pseudoref]]pseudoref::
        Pseudorefs are a class of files under `$GIT_DIR` which behave