allow to use Syslog::Logger
allow to use Syslog::Logger

https://ruby-doc.org/stdlib-2.6.3/libdoc/syslog/rdoc/Syslog/Logger.html has no `log` method defined, but `add` defined
https://ruby-doc.org/stdlib-2.6.3/libdoc/logger/rdoc/Logger.html has `log` method as alias for `add`


both loggers  have shortcut `info`  method
excon/excon