diff -r 14e500b58263 -r b399ff55ee6d mercurial/filelog.py
--- a/mercurial/filelog.py	Mon Sep 24 11:56:48 2018 -0700
+++ b/mercurial/filelog.py	Mon Sep 24 12:39:34 2018 -0700
@@ -77,7 +77,7 @@
     def iscensored(self, rev):
         return self._revlog.iscensored(rev)
 
-    # Used by repo upgrade, verify.
+    # Used by repo verify.
     def rawsize(self, rev):
         return self._revlog.rawsize(rev)
 
@@ -207,7 +207,7 @@
     def indexfile(self, value):
         self._revlog.indexfile = value
 
-    # Used by repo upgrade.
+    # Unused.
     @property
     def opener(self):
         return self._revlog.opener