Fix typo in comment.
diff --git a/Lib/heapq.py b/Lib/heapq.py
index fd7eea5..fee7a24 100644
--- a/Lib/heapq.py
+++ b/Lib/heapq.py
@@ -208,8 +208,8 @@
# heappop() a lot, in accord with theory. Here are typical results from 3
# runs (3 just to demonstrate how small the variance is):
#
-# Compares needed by heapify Compares needed by 1000 heapppops
-# -------------------------- ---------------------------------
+# Compares needed by heapify Compares needed by 1000 heappops
+# -------------------------- --------------------------------
# 1837 cut to 1663 14996 cut to 8680
# 1855 cut to 1659 14966 cut to 8678
# 1847 cut to 1660 15024 cut to 8703