sha1_object_info(): be consistent with read_sha1_file()
sha1_object_info(): be consistent with read_sha1_file()

We used to try loose objects first with sha1_object_info(), but packed
objects first with read_sha1_file(). Now, prefer packed objects over loose
ones with sha1_object_info(), too.

Usually the old behaviour would pose no problem, but when you tried to fix
a fscked up repository by inserting a known-good pack,

	git cat-file $(git cat-file -t <sha1>) <sha1>

could fail, even when

	git cat-file blob <sha1>

would _not_ fail. Worse, a repack would fail, too.

Signed-off-by: Johannes Schindelin <53fb8db7833fca1e1746dd8592f61048d350f64c@gmx.de>
Signed-off-by: Junio C Hamano <dc50d1021234060e53ec42a77d526afa2fe07479@cox.net>

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