cleanups: ensure that git-compat-util.h is included first

CodingGuidelines states that the first #include in C files should be
git-compat-util.h or another header file that includes it, such as
cache.h or builtin.h.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

bulk-checkin.c

@@ -1,6 +1,7 @@
 /*
  * Copyright (c) 2011, Google Inc.
  */
+#include "cache.h"
 #include "bulk-checkin.h"
 #include "csum-file.h"
 #include "pack.h"

bulk-checkin.h

@@ -4,8 +4,6 @@
 #ifndef BULK_CHECKIN_H
 #define BULK_CHECKIN_H
 
-#include "cache.h"
-
 extern int index_bulk_checkin(unsigned char sha1[],
 			      int fd, size_t size, enum object_type type,
 			      const char *path, unsigned flags);

http.c

@@ -1,3 +1,4 @@
+#include "git-compat-util.h"
 #include "http.h"
 #include "pack.h"
 #include "sideband.h"

merge-recursive.c

@@ -3,8 +3,8 @@
  * Fredrik Kuivinen.
  * The thieves were Alex Riesen and Johannes Schindelin, in June/July 2006
  */
-#include "advice.h"
 #include "cache.h"
+#include "advice.h"
 #include "cache-tree.h"
 #include "commit.h"
 #include "blob.h"

sigchain.c

@@ -1,5 +1,5 @@
-#include "sigchain.h"
 #include "cache.h"
+#include "sigchain.h"
 
 #define SIGCHAIN_MAX_SIGNALS 32
 

test-regex.c

@@ -1,4 +1,4 @@
-#include <git-compat-util.h>
+#include "git-compat-util.h"
 
 int main(int argc, char **argv)
 {

test-sigchain.c

@@ -1,5 +1,5 @@
-#include "sigchain.h"
 #include "cache.h"
+#include "sigchain.h"
 
 #define X(f) \
 static void f(int sig) { \

varint.c

@@ -1,3 +1,4 @@
+#include "git-compat-util.h"
 #include "varint.h"
 
 uintmax_t decode_varint(const unsigned char **bufp)

varint.h

@@ -1,8 +1,6 @@
 #ifndef VARINT_H
 #define VARINT_H
 
-#include "git-compat-util.h"
-
 extern int encode_varint(uintmax_t, unsigned char *);
 extern uintmax_t decode_varint(const unsigned char **);