comment tyo
diff --git a/infocalypse/graphutil.py b/infocalypse/graphutil.py
--- a/infocalypse/graphutil.py
+++ b/infocalypse/graphutil.py
@@ -187,7 +187,7 @@ def should_add_head(repo, version_table,
return True
# TRICKY:
-# You need the repository changset DAG in order to determine
+# You need the repository changeset DAG in order to determine
# the base revs. because new changes might have branched from
# a change in the middle of a previous index which doesn't
# appear explictly in the graph.