I started extending some system tests for named-checkconf and saw that 
the check-spf fail doesn't work.  Now I see in code that "fail" was 
removed as an option.

In the ARM, the grammar for check-spf still shows "fail" in two places.

While there see the check-integrity explanation has odd sentence:

"Warnings are emitted it they don't and be suppressed with check-spf."
(Maybe missing "will"?)