Disable readline specs if rb-readline is used
Disable readline specs if rb-readline is used

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