Comment 2 for bug 46636

I got confused by the * for a minute too... Perhaps:

--- a/bzrlib/builtins.py
+++ b/bzrlib/builtins.py
@@ -135,7 +135,8 @@
         parent directory was renamed.

     modified
- Text has changed since the previous revision.
+ Text has changed since the previous revision. Trailing * indicates
+ execute permission has changed.

     kind changed
         File kind has been changed (e.g. from file to directory).