Fixup linting errors in http20/exceptions.py.

Lukasa · Lukasa · commit 6c9e68b6b415 · 2016-04-19T10:25:27.000+01:00
diff --git a/hyper/http20/exceptions.py b/hyper/http20/exceptions.py
@@ -6,6 +6,7 @@
 This defines exceptions used in the HTTP/2 portion of hyper.
 """
 
+
 class HTTP20Error(Exception):
     """
     The base class for all of ``hyper``'s HTTP/2-related exceptions.
