Merge branch 'nd/traces'

* nd/traces: git.txt: document GIT_TRACE_PACKET core: use env variable instead of config var to turn on logging pack access

Junio C Hamano committed Jun 20, 2013 at 16:02 UTC 8f0c843aab226225b8ef43e9b2e317bda5ea8f6d

No changes.