asyncio: Fix open_connection() documentation, writer is a StreamWriter
diff --git a/Lib/asyncio/streams.py b/Lib/asyncio/streams.py
index f01f862..b1648e0 100644
--- a/Lib/asyncio/streams.py
+++ b/Lib/asyncio/streams.py
@@ -21,7 +21,7 @@
"""A wrapper for create_connection() returning a (reader, writer) pair.
The reader returned is a StreamReader instance; the writer is a
- Transport.
+ StreamWriter.
The arguments are all the usual arguments to create_connection()
except protocol_factory; most common are positional host and port,