[PATCH 4 of 5] devel: officially deprecate dirstate.write without transaction argument

[Pierre-Yves David]

# HG changeset patch
# User Pierre-Yves David <pierre-yves.david at ens-lyon.org>
# Date 1462951907 -7200
#      Wed May 11 09:31:47 2016 +0200
# Node ID 685102426f222a6746960a905e2392cc2c4607da
# Parent  88cf0151f1d38dd4626bbf100471ade049108c14
# EXP-Topic deprecate
devel: officially deprecate dirstate.write without transaction argument

When we introduce the develwarning, we did not had an official deprecation API
and infrastructure. We can now officially deprecate the old way with a version
deadline.

diff -r 88cf0151f1d3 -r 685102426f22 mercurial/dirstate.py
--- a/mercurial/dirstate.py	Wed May 11 09:31:47 2016 +0200
+++ b/mercurial/dirstate.py	Wed May 11 09:31:47 2016 +0200
@@ -694,9 +694,9 @@ class dirstate(object):
 
         filename = self._filename
         if tr is False: # not explicitly specified
-            self._ui.develwarn('use dirstate.write with '
+            self._ui.deprecwarn('use dirstate.write with '
                                'repo.currenttransaction()',
-                               config='check-dirstate-write')
+                               '3.9')
 
             if self._opener.lexists(self._pendingfilename):
                 # if pending file already exists, in-memory changes