language flexibility

The order of options is flexible in most cases now.

OpenBSD 3.2 required:  
  block in log quick on dc0 from any to any
   port 80 flags S/SA keep state label "xyz"

OpenBSD 3.3 allows that to be written in different order, too:
  block in quick log on dc0 from any to any
   port 80 label "xyz" flags S/SA keep state

 or

  block in log quick on dc0 from any to any
   port 80 keep state label "xyz" flags S/SA