--- a/mercurial/revset.py	Fri Aug 17 13:58:18 2012 -0700
+++ b/mercurial/revset.py	Fri Aug 17 13:58:18 2012 -0700
@@ -594,7 +594,7 @@
 
             # The visited lineage is a match if the current source is in the arg
             # set.  Since every candidate dest is visited by way of iterating
-            # subset, any dests futher back in the lineage will be tested by a
+            # subset, any dests further back in the lineage will be tested by a
             # different iteration over subset.  Likewise, if the src was already
             # selected, the current lineage can be selected without going back
             # further.