[PATCH 2 of 6] manifest: use PyVarObject_HEAD_INIT

[Gregory Szorc]

# HG changeset patch
# User Gregory Szorc <gregory.sz...@gmail.com>
# Date 1476357443 -7200
#      Thu Oct 13 13:17:23 2016 +0200
# Node ID 1e3d29ee42903dfb65308a849f987dbe9de97953
# Parent  1f30bcebd4bdc26602ec4e9ae924f101c7642594
manifest: use PyVarObject_HEAD_INIT

More appeasing the Python 3 and compiler overlords. The code is
equivalent.

diff --git a/mercurial/manifest.c b/mercurial/manifest.c
--- a/mercurial/manifest.c
+++ b/mercurial/manifest.c
@@ -261,10 +261,9 @@ done:
        | Py_TPFLAGS_HAVE_ITER
 #endif
 
 static PyTypeObject lazymanifestEntriesIterator = {
-       PyObject_HEAD_INIT(NULL)
-       0,                               /*ob_size */
+       PyVarObject_HEAD_INIT(NULL, 0)
        "parsers.lazymanifest.entriesiterator", /*tp_name */
        sizeof(lmIter),                  /*tp_basicsize */
        0,                               /*tp_itemsize */
        lmiter_dealloc,                  /*tp_dealloc */
@@ -310,10 +309,9 @@ static PyObject *lmiter_iterkeysnext(PyO
        | Py_TPFLAGS_HAVE_ITER
 #endif
 
 static PyTypeObject lazymanifestKeysIterator = {
-       PyObject_HEAD_INIT(NULL)
-       0,                               /*ob_size */
+       PyVarObject_HEAD_INIT(NULL, 0)
        "parsers.lazymanifest.keysiterator", /*tp_name */
        sizeof(lmIter),                  /*tp_basicsize */
        0,                               /*tp_itemsize */
        lmiter_dealloc,                  /*tp_dealloc */
@@ -889,10 +887,9 @@ static PyMethodDef lazymanifest_methods[
 #define LAZYMANIFEST_TPFLAGS Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_SEQUENCE_IN
 #endif
 
 static PyTypeObject lazymanifestType = {
-       PyObject_HEAD_INIT(NULL)
-       0,                                                /* ob_size */
+       PyVarObject_HEAD_INIT(NULL, 0)
        "parsers.lazymanifest",                           /* tp_name */
        sizeof(lazymanifest),                             /* tp_basicsize */
        0,                                                /* tp_itemsize */
        (destructor)lazymanifest_dealloc,                 /* tp_dealloc */
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