Warnings under newer rubies

[mwpastore]

Getting some warnings running Hobby in test:

/Users/mwp/.rbenv/versions/2.4.2/lib/ruby/gems/2.4.0/gems/hobby-0.1.1/lib/hobby.rb:20: warning: parentheses after method name is interpreted as an argument list, not a decomposed argument
/Users/mwp/.rbenv/versions/2.4.2/lib/ruby/gems/2.4.0/gems/hobby-0.1.1/lib/hobby.rb:51: warning: `&' interpreted as argument prefix
/Users/mwp/.rbenv/versions/2.4.2/lib/ruby/gems/2.4.0/gems/hobby-0.1.1/lib/hobby/router.rb:45: warning: `*' interpreted as argument prefix

[ch1c0t]

I am not a fan of parentheses when they can be omitted. This is just a personal preference.

The semantics(which the warnings notify about) is intended. It is just a question of syntactic preferences, I believe.

I am not inclined to fix them. But thank you for your attentiveness.

To reproduce, I run the specs with bundle exec rspec --warnings. Otherwise, no warnings are shown.