hg: remove reserved identifiers
Per 7.1.3 paragraph, from C draft:
All identifiers that begin with an underscore and either an uppercase letter or
another underscore are always reserved for any use.
--- a/mercurial/bdiff.h Mon Oct 18 16:24:00 2021 -0700
+++ b/mercurial/bdiff.h Thu Oct 21 11:21:21 2021 +0200
@@ -1,5 +1,5 @@
-#ifndef _HG_BDIFF_H_
-#define _HG_BDIFF_H_
+#ifndef HG_BDIFF_H
+#define HG_BDIFF_H
#include "compat.h"
--- a/mercurial/bitmanipulation.h Mon Oct 18 16:24:00 2021 -0700
+++ b/mercurial/bitmanipulation.h Thu Oct 21 11:21:21 2021 +0200
@@ -1,5 +1,5 @@
-#ifndef _HG_BITMANIPULATION_H_
-#define _HG_BITMANIPULATION_H_
+#ifndef HG_BITMANIPULATION_H
+#define HG_BITMANIPULATION_H
#include <string.h>
--- a/mercurial/compat.h Mon Oct 18 16:24:00 2021 -0700
+++ b/mercurial/compat.h Thu Oct 21 11:21:21 2021 +0200
@@ -1,5 +1,5 @@
-#ifndef _HG_COMPAT_H_
-#define _HG_COMPAT_H_
+#ifndef HG_COMPAT_H
+#define HG_COMPAT_H
#ifdef _WIN32
#ifdef _MSC_VER
--- a/mercurial/mpatch.h Mon Oct 18 16:24:00 2021 -0700
+++ b/mercurial/mpatch.h Thu Oct 21 11:21:21 2021 +0200
@@ -1,5 +1,5 @@
-#ifndef _HG_MPATCH_H_
-#define _HG_MPATCH_H_
+#ifndef HG_MPATCH_H
+#define HG_MPATCH_H
#define MPATCH_ERR_NO_MEM -3
#define MPATCH_ERR_CANNOT_BE_DECODED -2