Log Message:
sysutils/ruby-specinfra: update to 2.73.2

2.73.2					2018/02/07

* [CI] Test against new Ruby 2.x versions
* Detect qemu virtualization as well

2.73.1					2018/01/12

* Refine method get_table()
* Install bundler with --force on appveyor.

2.73.0					2017/12/20

* support Amazon Linux 2 systemd init system
* Add simple Devuan (devuan.org) support