AppVeyor: run only once per PR from the same repo (#305)
AppVeyor: run only once per PR from the same repo (#305)


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