Add new lines.

Author: Lukasa

hyper/http20/stream.py

@@ -60,17 +60,20 @@ def __init__(self,
         # Set to a key-value set of the response headers once their
         # HEADERS..CONTINUATION frame sequence finishes.
         self.response_headers = None
+
         # A dict mapping the promised stream ID of a pushed resource to a
         # key-value set of its request headers. Entries are added once their
         # PUSH_PROMISE..CONTINUATION frame sequence finishes.
         self.promised_headers = {}
+
         # Chunks of encoded header data from the current
         # (HEADERS|PUSH_PROMISE)..CONTINUATION frame sequence. Since sending any
         # frame other than a CONTINUATION is disallowed while a header block is
         # being transmitted, this and ``promised_stream_id`` are the only pieces
         # of state we have to track.
         self.header_data = []
         self.promised_stream_id = None
+
         # Unconsumed response data chunks. Empties after every call to _read().
         self.data = []