Fixed rubocop errors on lib/kuniri/language/ruby/variable_global_ruby.rb
Fixed rubocop errors on lib/kuniri/language/ruby/variable_global_ruby.rb

Signed-off-by: Bruno <3818f5015ddaa81de9a9d55c3fe1ccf259451d2b@usp.br>
Signed-off-by: Lucas Kanashiro <e8bb13a8e92a19bedc5d076d2547dc6720650f25@riseup.net>

rodrigosiqueira/kuniri