make copy_ref globally available
authorJeff King <peff@peff.net>
Tue, 7 Jun 2011 23:03:03 +0000 (19:03 -0400)
committerJunio C Hamano <gitster@pobox.com>
Tue, 7 Jun 2011 23:07:07 +0000 (16:07 -0700)
This is a useful function, and we have already made the
similar alloc_ref and copy_ref_list available.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
No differences found