clear_memo(): Repaired grammar in docstring.
diff --git a/Lib/pickle.py b/Lib/pickle.py
index 2d6710b..47a61ae 100644
--- a/Lib/pickle.py
+++ b/Lib/pickle.py
@@ -183,9 +183,9 @@
"""Clears the pickler's "memo".
The memo is the data structure that remembers which objects the
- pickler has already seen, so that shared or recursive objects pickled
- by reference and not by value. This method is useful when re-using
- picklers.
+ pickler has already seen, so that shared or recursive objects are
+ pickled by reference and not by value. This method is useful when
+ re-using picklers.
"""
self.memo.clear()