Merge branch 'nm/grep-object-sha1-lock' into maint

* nm/grep-object-sha1-lock: grep: Fix race condition in delta_base_cache Conflicts: builtin/grep.c

Junio C Hamano committed Oct 15, 2011 at 20:46 UTC 7c4f050ae1e140a81f66b5cf92ad2c8673cfda8b

No changes.