Fix incorrect _disconnect_raise docstring (#2534)

Author: mohsinhaider

redis/asyncio/client.py

@@ -483,8 +483,8 @@ async def _send_command_parse_response(self, conn, command_name, *args, **option
     async def _disconnect_raise(self, conn: Connection, error: Exception):
         """
         Close the connection and raise an exception
-        if retry_on_timeout is not set or the error
-        is not a TimeoutError
+        if retry_on_error is not set or the error
+        is not one of the specified error types
         """
         await conn.disconnect()
         if (