[PATCH 1 of 2] py3: remove unneeded fsencode() from gitsubrepo

[Yuya Nishihara]

# HG changeset patch
# User Yuya Nishihara <yuya at tcha.org>
# Date 1549088495 -32400
#      Sat Feb 02 15:21:35 2019 +0900
# Node ID 921b4ffa9ced910ea79cb839b86a06287710f29c
# Parent  3a3b053d0882a33ba7ea667052e445b193ffa4df
py3: remove unneeded fsencode() from gitsubrepo

Here p.stdout isn't a TextIO. read() must return bytes.

diff --git a/mercurial/subrepo.py b/mercurial/subrepo.py
--- a/mercurial/subrepo.py
+++ b/mercurial/subrepo.py
@@ -1286,7 +1286,7 @@ class gitsubrepo(abstractsubrepo):
         if stream:
             return p.stdout, None
 
-        retdata = pycompat.fsencode(p.stdout.read().strip())
+        retdata = p.stdout.read().strip()
         # wait for the child to exit to avoid race condition.
         p.wait()