security/rkhunter without hashes after recent STABLE-13 update

[Michael Grimm via freebsd-stable]

Hi,

I noticed that after my last upgrade to stable/13-n246157 (from 
stable/13-n246147) that /usr/local/var/lib/rkhunter/db/rkhunter.dat started 
lacking hashes.

Regarding rkhunter.conf the default setting is:

        HASH_CMD=SHA256

and:

        If just the command name is given, and it is one of MD5, 
        SHA1, SHA224, SHA256, SHA384 or SHA512, then rkhunter will first look 
for the 
        relevant command, such as 'sha256sum', and then for 'sha256'.

If I do modify the setting to ...

        HASH_CMD=/sbin/sha256

… rkhunter.dat shows hashes again.


Ok, that can be fixed. 

But I wonder if my findings have something to do with security/rkhunter at all, 
because that port didn't change recently. 

Can someone point me into the right direction, how to find out if the output of 
/sbin/sha256sum changes between stable/13-n246147 and stable/13-n246157?

Regards,
Michael