account for the size of a 802.11 header in ieee80211_getmbuf(). fix some typos while i'm here.
account for the size of a 802.11 header in ieee80211_getmbuf().
fix some typos while i'm here.

ok reyk@ brad@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars