Merge branch 'nd/object-allocation-comments' into next

Code doc update.

* nd/object-allocation-comments:
object.h: realign object flag allocation comment
object.h: update flag allocation comment

diff --cc builtin/index-pack.c
Simple merge

diff --cc builtin/pack-objects.c
Simple merge

diff --cc builtin/reflog.c
Simple merge

diff --cc builtin/unpack-objects.c
Simple merge

diff --cc object.h
Simple merge