revert genericize change

diff --git a/tornado/httputil.py b/tornado/httputil.py
index 88020a47b29182516e7aa4713444275872050fed..bd32cd0c49cc2e369eed7a5724a8f0402f3a227d 100644 (file)
--- a/tornado/httputil.py
+++ b/tornado/httputil.py
@@ -520,7 +520,7 @@ class HTTPMessageDelegate(object):
     .. versionadded:: 4.0
     """
 
-    # TODO: generalize this class to avoid exposing the Union.
+    # TODO: genericize this class to avoid exposing the Union.
     def headers_received(
         self,
         start_line: Union["RequestStartLine", "ResponseStartLine"],