Merge branch 'maint-1.8.1' into maint

* maint-1.8.1: fast-export: fix argument name in error messages Documentation: distinguish between ref and offset deltas in pack-format

Junio C Hamano committed Apr 12, 2013 at 11:48 UTC 7f20008d14e3eececdc90c75d3a86ee6c250cb67

No changes.