bpo-32622: Fix AbstractEventLoop.sendfile signature in documentation. (GH-5368)

diff --git a/Doc/library/asyncio-eventloop.rst b/Doc/library/asyncio-eventloop.rst
index fe16223..78ae183 100644
--- a/Doc/library/asyncio-eventloop.rst
+++ b/Doc/library/asyncio-eventloop.rst
@@ -546,7 +546,7 @@
 File Transferring
 -----------------
 
-.. coroutinemethod:: AbstractEventLoop.sendfile(sock, transport, \
+.. coroutinemethod:: AbstractEventLoop.sendfile(transport, file, \
                                                 offset=0, count=None, \
                                                 *, fallback=True)