Log Message:
net/ruby-recog: update to 2.1.18

2.1.16				2017/10/26

* Improve MariaDB on Ubunto - Issue #156

2.1.17				2017/11/28

* Improve Exim coverage, add examples

2.1.18				2018/02/23

* ssh update - data from 2017.11.30
* Removed honeypot fingerprint
* Add Debian 8.0 (jessie) MariaDB fingerprint