[PATCH] git-write-tree writes garbage on sparc64

In the "next" branch, write_index_ext_header() writes garbage on a
64-bit big-endian machine; the written index file will be unreadable.
I noticed this on NetBSD/sparc64. Reproducible with:

$ git init-db
$ :>file
$ git-update-index --add file
$ git-write-tree
$ git-update-index
error: index uses  extension, which we do not understand
fatal: index file corrupt

Signed-off-by: Dennis Stosberg <redacted>
---
 read-cache.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/read-cache.c b/read-cache.c
index 36bd4ea..c499c51 100644
--- a/read-cache.c
+++ b/read-cache.c

@@ -826,7 +826,7 @@ static int ce_write(SHA_CTX *context, in
 }
 
 static int write_index_ext_header(SHA_CTX *context, int fd,
-				  unsigned long ext, unsigned long sz)
+				  unsigned int ext, unsigned int sz)
 {
 	ext = htonl(ext);
 	sz = htonl(sz);

-- 
1.3.3.g3c38f