[ruby/mmtk] Fix environment variable parsing
Ues more idiomatic rust approaches.
https://github.com/ruby/mmtk/commit/ef125f9eae
[ruby/mmtk] Fix environment variable parsing
Ues more idiomatic rust approaches.
https://github.com/ruby/mmtk/commit/ef125f9eae