Improve SSL testing
Improve SSL testing

Remove unnecessary skipping of SSL validation
Remove unnecessary setup of ServerName for server side (CN is in the cert)

Signed-off-by: Alex Bligh <60c6d277a8bd81de7fdde19201bf9c58a3df08f4@alex.org.uk>

abligh/go-syslog,mcuadros/go-syslog