# HG changeset patch
# User Yuya Nishihara <yuya@tcha.org>
# Date 1518611367 -32400
# Node ID 46260fac556348f3600bae2d41af058f131a3460
# Parent  deb851914fd7b89ac994750c415dd64efc9f8b69
py3: stringify IOError/OSError without loosing local character

Follows up fa4d333cac58. An environment error may contain non-ascii characters
on Windows, which should be encoded to a platform-native string.

diff -r deb851914fd7 -r 46260fac5563 mercurial/branchmap.py
--- a/mercurial/branchmap.py	Fri Jan 26 19:48:39 2018 +0900
+++ b/mercurial/branchmap.py	Wed Feb 14 21:29:27 2018 +0900
@@ -377,7 +377,7 @@
                 self._rbcrevs[:] = data
             except (IOError, OSError) as inst:
                 repo.ui.debug("couldn't read revision branch cache: %s\n" %
-                              pycompat.bytestr(inst))
+                              util.forcebytestr(inst))
         # remember number of good records on disk
         self._rbcrevslen = min(len(self._rbcrevs) // _rbcrecsize,
                                len(repo.changelog))