Lint error on check_mx_delay

[Alicia Forsythe]

Just upgraded to 3.0 from 2.55. spamassassin --lint produced the following error: failed to parse line check_mx_delay         5 this is the first uncommented line from the local.cf file auto created with SAConf 1.2.4.  local.cf also contains our whitelist.  The whitelsist is being used and all is working just fine.  Any reason lint is picking up on this line with 3.0?