attr.c: use ALLOC_GROW() in handle_attr_line()
attr.c: use ALLOC_GROW() in handle_attr_line()

Signed-off-by: Dmitry S. Dolzhenko <451cc4bac5355a845ebc80185951f5a9827daa77@yandex.ru>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git