status: update comment to reflect the more recent situation

This is a gratuitous cleanup.

Differential Revision: https://phab.mercurial-scm.org/D8516

mercurial/dirstate.py

@@ -1196,7 +1196,7 b' class dirstate(object):'
         elif match.traversedir is not None:
             use_rust = False
         elif not isinstance(match, allowed_matchers):
-            # Matchers have yet to be implemented
+            # Some matchers have yet to be implemented
             use_rust = False
 
         if use_rust: