Cleanup

examples/async_socket_message_client.py

@@ -9,8 +9,7 @@ import addressbook_capnp
 
 def parse_args():
     parser = argparse.ArgumentParser(
-        usage="Connects to the Example thread server \
-at the given address and does some RPCs"
+        usage="Connects to the Example thread server at the given address and does some RPCs"
     )
     parser.add_argument("host", help="HOST:PORT")