Show previos commit msg when commit

  - http://blog.outsider.ne.kr/970
use vim to editer
# Last 5 commit messages
# ----------------------
# 9deb6a0 Show previos commit msg when commit [Tw Shim]
# 2e45093 add vim dispatch [Tw Shim]
# 6183ff7 pubkey add function [Tw Shim]
# 50111bc add qdo [Tw Shim]
# 4f09633 update bundle name [Tw Shim]