Hardcoded installation directory in host-deny.sh

[mobstef]

I am the OSSEC FreeBSD port maintainer.
For a long time there is a bug in "active-response/host-deny.sh" where OSSEC installation directory is hardcoded to "/var/ossec". I have replaced it with "${PWD}" as seen in other active response scripts. Note however, that this will default to "/var/ossec/active-response" instead.
See attached patch.
patch-active-response_host-deny.sh.txt

[atomicturtle]

@mobstef I'd love to get your input on coordinating the releases on Freebsd with you, would you like an invite to our slack channel? I'm scott @ ossec.net

[mobstef]

@atomicturtle
Yes, that would be great. I am happy to help. I've sent you an email.