worktree: avoid 0{40}, too many zeroes, hard to read

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Reviewed-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Nguyễn Thái Ngọc Duy committed May 22, 2016 at 16:33 UTC ef23c347cf363118e236ae72fe6372443fae1ecf
1 file changed +1 -1
builtin/worktree.c
+1 -1
@@ -262,7 +262,7 @@ static int add_worktree(const char *path, const char *refname,
262 */
263 strbuf_reset(&sb);
264 strbuf_addf(&sb, "%s/HEAD", sb_repo.buf);
265 - write_file(sb.buf, "0000000000000000000000000000000000000000");
265 + write_file(sb.buf, sha1_to_hex(null_sha1));
266 strbuf_reset(&sb);
267 strbuf_addf(&sb, "%s/commondir", sb_repo.buf);
268 write_file(sb.buf, "../..");