diff --git a/mercurial/win32.py b/mercurial/win32.py
index 91f1fe78454c9e8c661eba652e974d48f86f2ad3_bWVyY3VyaWFsL3dpbjMyLnB5..79a12651d46b50719a21fc12a40e70dc9bd0d2ea_bWVyY3VyaWFsL3dpbjMyLnB5 100644
--- a/mercurial/win32.py
+++ b/mercurial/win32.py
@@ -270,8 +270,9 @@
     with win32file.FILE_SHARE_DELETE. this flag does not exist on
     windows < nt, so do not use this class there.'''
 
-    # tried to use win32file._open_osfhandle to pass fd to os.fdopen,
-    # but does not work at all. wrap win32 file api instead.
+    # ideally, we could use win32file._open_osfhandle and avoid this
+    # class entirely, but we would need the win32 _fdopen function,
+    # which is not exported by the win32file module.
 
     def __init__(self, name, mode='rb'):
         self.closed = False