--- a/mercurial/revlog.py	Fri Aug 17 13:58:18 2012 -0700
+++ b/mercurial/revlog.py	Fri Aug 17 13:58:18 2012 -0700
@@ -547,7 +547,7 @@
         # Our topologically sorted list of output nodes.
         orderedout = []
         # Don't start at nullid since we don't want nullid in our output list,
-        # and if nullid shows up in descedents, empty parents will look like
+        # and if nullid shows up in descendants, empty parents will look like
         # they're descendants.
         for r in xrange(max(lowestrev, 0), highestrev + 1):
             n = self.node(r)