[pmwiki-users] Minor edit detection to enable mailposts

[K.A.Bouton]

How do I detect if minor edit has been selected?
I only want mailposts sent if its not checked as a minor edit

In local/config.php I tried 

// mail the fact that pages have been updated is enabled and sent to the
following people
if (isset($diffclass) || $diffclass=='minor') {
$EnableMailPosts	=0; # do NOT enable mailposts if it is checked as a
minor edit
} else  {
$EnableMailPosts	=1; # enable mailposts if it is NOT checked as a
minor edit
}

But that didn't seem to work

Thanks
katherine