py3: use pycompat.ossep at certain places

py3: use pycompat.ossep at certain places

Certain instances of os.sep has been converted to pycompat.ossep where it was
sure to use bytes only. There are more such instances which needs some more
attention and will get surely.

--- a/mercurial/commands.py	Sun Nov 06 03:44:44 2016 +0530
+++ b/mercurial/commands.py	Sun Nov 06 04:10:33 2016 +0530
@@ -61,6 +61,7 @@
     phases,
     policy,
     pvec,
+    pycompat,
     repair,
     revlog,
     revset,
@@ -3160,7 +3161,7 @@
         if os.path.isdir(spec):
             spec += '/'
         spec = spec[len(rootdir):]
-        fixpaths = os.sep != '/'
+        fixpaths = pycompat.ossep != '/'
         if fixpaths:
             spec = spec.replace(os.sep, '/')
         speclen = len(spec)
@@ -3755,7 +3756,7 @@
     if not items:
         return
     f = lambda fn: fn
-    if ui.configbool('ui', 'slash') and os.sep != '/':
+    if ui.configbool('ui', 'slash') and pycompat.ossep != '/':
         f = lambda fn: util.normpath(fn)
     fmt = 'f  %%-%ds  %%-%ds  %%s' % (
         max([len(abs) for abs in items]),

--- a/mercurial/dirstate.py	Sun Nov 06 03:44:44 2016 +0530
+++ b/mercurial/dirstate.py	Sun Nov 06 04:10:33 2016 +0530
@@ -21,6 +21,7 @@
     osutil,
     parsers,
     pathutil,
+    pycompat,
     scmutil,
     util,
 )
@@ -215,7 +216,7 @@
 
     @propertycache
     def _slash(self):
-        return self._ui.configbool('ui', 'slash') and os.sep != '/'
+        return self._ui.configbool('ui', 'slash') and pycompat.ossep != '/'
 
     @propertycache
     def _checklink(self):

--- a/mercurial/pure/osutil.py	Sun Nov 06 03:44:44 2016 +0530
+++ b/mercurial/pure/osutil.py	Sun Nov 06 04:10:33 2016 +0530
@@ -14,7 +14,11 @@
 import stat as statmod
 import sys
 
-from . import policy
+from . import (
+    policy,
+    pycompat,
+)
+
 modulepolicy = policy.policy
 policynocffi = policy.policynocffi
 
@@ -51,8 +55,8 @@
     '''
     result = []
     prefix = path
-    if not prefix.endswith(os.sep):
-        prefix += os.sep
+    if not prefix.endswith(pycompat.ossep):
+        prefix += pycompat.ossep
     names = os.listdir(path)
     names.sort()
     for fn in names: