Fix newlines

synapse/crypto/keyring.py

@@ -115,7 +115,6 @@ class Keyring(object):
         r = yield create_observer(download)
         defer.returnValue(r)
 
-
     @defer.inlineCallbacks
     def _get_server_verify_key_impl(self, server_name, key_ids):
         # Try to fetch the key from the remote server.
@@ -190,4 +189,4 @@ class Keyring(object):
                 defer.returnValue(verify_keys[key_id])
                 return
 
-        raise ValueError("No verification key found for given key ids")
+        raise ValueError("No verification key found for given key ids")
\ No newline at end of file