pfSense

I have two hosts that have hyphens in them (ex abc-host and def-host). When I tried to add them to the static DHCP leases, I get:

The hostname cannot end with a hyphen according to RFC952 - (note the END, my hyphen is in the middle)

I changed services_dhcp_edit.php from this:
117 preg_match("/.*\-/", $_POST['hostname'], $matches);

to this:
117 preg_match("/.(-)$/", $_POST['hostname'], $matches);

This is the second time I've used a regex so there is probably a better way to do this. I tested the above code change. I can have a hyphen in the middle, but not at the end. Works for me.