# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 2020-10-14 19:47:14
# Node ID d1072cba8aff6a5d7399d156fe76da87fff56d2c
# Parent  99b8b73eb622c2be99847b40993f17a6ee3ff7c3

pycompat: update comment about unnamedtempfile

I found the comment clearer. I end up having to think about this for
`TemporaryFile` and I update that one in the process.

Differential Revision: https://phab.mercurial-scm.org/D9210

diff --git a/mercurial/pycompat.py b/mercurial/pycompat.py
--- a/mercurial/pycompat.py
+++ b/mercurial/pycompat.py
@@ -506,7 +506,8 @@ def mkstemp(suffix=b'', prefix=b'tmp', d
     return tempfile.mkstemp(suffix, prefix, dir)
 
 
-# mode must include 'b'ytes as encoding= is not supported
+# NamedTemporaryFile does not support an "encoding=" argument on python2.
+# This wrapper file are always open in byte mode.
 def namedtempfile(
     mode=b'w+b', bufsize=-1, suffix=b'', prefix=b'tmp', dir=None, delete=True
 ):