Though it's not in the gemspec, jenkins-api-client is MIT licensed, as you can clearly see from the git repo or the source files. Set LICENSE accordingly. Also, set NO_ARCH because this port is pure Ruby.
Created attachment 190209 [details] set LICENSE and NO_ARCH
Committed. Thanks!
A commit references this bug: Author: sunpoet Date: Wed Jan 31 16:01:01 UTC 2018 New revision: 460494 URL: https://svnweb.freebsd.org/changeset/ports/460494 Log: Add LICENSE - Add NO_ARCH - While I'm here, sort RUN_DEPENDS PR: 225568 Submitted by: asomers Changes: head/devel/rubygem-jenkins_api_client/Makefile