Log Message:
devel/ruby-getopt: update to 1.5.1

Update ruby-getopt to 1.5.1.

== 1.5.1 - 23-Mar-2020
* Properly add a LICENSE file since the Apache-2.0 license requires it.
* Added explicit .rdoc extensions to the README, CHANGES and MANIFEST files,
  mostly so they look nicer on github.