Fix syslog_syslog_server_info module output, update tests.

[anazobec]

Fixed a minor issue pointed out in pull request #132.

Info module does not convert SYSLOG_PROTOCOL_UDP to udp, but it should.
The syslog_server_info module should return values that are same as those accepted by syslog_server module.

[justinc1]

Just small changes. i feel a bit bad for being annoying. Hope is not to bad. :)

[anazobec]

Note: I have to fix unit tests. Missed that.

[justinc1]

Thank you, merging.