Fix repeatability of a /regexp/o spec and simplify
Fix repeatability of a /regexp/o spec and simplify

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