Re: [PATCH 5/5] commit: rewrite read_graft_line

Patryk Obara [off-list ref] writes:

The previous implementation of read_graft_line used calculations based
on GIT_SHA1_RAWSZ and GIT_SHA1_HEXSZ to determine the number of commit
ids in a single graft line.  New implementation does not depend on these
constants, so it adapts to any object_id buffer size.

I am not sure if this is a good approach.  Just like in 2/5 you can
use the MAX thing instead of 20, instead of having each graft entry
allocate a separate oid_array.oid[].

Is this because you expect more than one _kind_ of hashes are used
at the same time?