diff -r fa247f53f647 -r 8e9b9f020f95 mercurial/revlog.py
--- a/mercurial/revlog.py	Thu Jun 15 13:23:21 2017 -0700
+++ b/mercurial/revlog.py	Thu Jun 15 13:25:41 2017 -0700
@@ -1854,7 +1854,6 @@
         this revlog and the node that was added.
         """
 
-        # track the base of the current delta log
         content = []
 
         r = len(self)