trivial: O_EXCL makes O_TRUNC redundant

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

apply.c

@@ -1588,7 +1588,7 @@ static int try_create_file(const char *path, unsigned int mode, const char *buf,
 
 	if (S_ISLNK(mode))
 		return symlink(buf, path);
-	fd = open(path, O_CREAT | O_EXCL | O_WRONLY | O_TRUNC, (mode & 0100) ? 0777 : 0666);
+	fd = open(path, O_CREAT | O_EXCL | O_WRONLY, (mode & 0100) ? 0777 : 0666);
 	if (fd < 0)
 		return -1;
 	while (size) {

entry.c

@@ -60,7 +60,7 @@ static void remove_subtree(const char *path)
 static int create_file(const char *path, unsigned int mode)
 {
 	mode = (mode & 0100) ? 0777 : 0666;
-	return open(path, O_WRONLY | O_TRUNC | O_CREAT | O_EXCL, mode);
+	return open(path, O_WRONLY | O_CREAT | O_EXCL, mode);
 }
 
 static int write_entry(struct cache_entry *ce, const char *path, struct checkout *state)