Remove redundant leading zeroes in PEP references.
diff --git a/Doc/reference/simple_stmts.rst b/Doc/reference/simple_stmts.rst
index 0203e08..1aa1fc1 100644
--- a/Doc/reference/simple_stmts.rst
+++ b/Doc/reference/simple_stmts.rst
@@ -538,10 +538,10 @@
.. seealso::
- :pep:`0255` - Simple Generators
+ :pep:`255` - Simple Generators
The proposal for adding generators and the :keyword:`yield` statement to Python.
- :pep:`0342` - Coroutines via Enhanced Generators
+ :pep:`342` - Coroutines via Enhanced Generators
The proposal that, among other generator enhancements, proposed allowing
:keyword:`yield` to appear inside a :keyword:`try` ... :keyword:`finally` block.