FreeBSD 7.0 的 History Key Bind

FreeBSD 7.0 的 key bind 改過了，改成舊式的方法如下:
# fix bindkeys to old style:
bindkey "^[[A" history-search-backward # up
bindkey "^[[B" history-search-forward # down
bindkey -k up history-search-backward
bindkey -k down history-search-forward