Minor edit to the short_text for host acks.
Minor edit to the short_text for host acks.

kenzophuong/nagios-herald-1,etsy/nagios-herald,kenzophuong/nagios-herald-1,kenzophuong/nagios-herald-1,BinLee/nagios-herald,kenzophuong/nagios-herald-1,etsy/nagios-herald,BinLee/nagios-herald,etsy/nagios-herald,etsy/nagios-herald,BinLee/nagios-herald,BinLee/nagios-herald