appveyor.yml: fix wrong spec directory
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65259 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
appveyor.yml: fix wrong spec directory
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65259 b2dd03c8-39d4-4d8f-98ff-823fe69b080e