Request for help: remove bundler from ruby 2.6 port

[Yasuhiro KIMURA]

Hello all,

Ruby 2.6.0 is released and I tried porting it.

After creating start point by 'svn copy lang/ruby25 lang/ruby26', I
made following changes.

https://www.utahime.org/FreeBSD/ports/lang_ruby26.patch

It is build successfully and works fine on 12.0-RELEASE amd64. But
there is still one issue left.

>From 2.6.0 ruby includes 'bundler'. But according to the convention of
ruby port it should be removed from ruby core port in the same way as
'gem' and 'rake'. I learned from Makefile that it is achieved by
removing related files from source tree at post-patch target. However
I don't know enough about what files need to be removed to cleanly
remove bundler from ruby 2.6 port.

So would someone please help me about it?

Best Regards.

---
Yasuhiro KIMURA