Fix encoding in core/string/slice_spec.rb
Fix encoding in core/string/slice_spec.rb

eregon/rubyspec,ruby/spec,nobu/rubyspec,kachick/rubyspec,sgarciac/spec,eregon/rubyspec,sgarciac/spec,kachick/rubyspec,nobu/rubyspec,nobu/rubyspec,ruby/spec,ruby/rubyspec,kachick/rubyspec,ruby/rubyspec,ruby/spec,sgarciac/spec,eregon/rubyspec