bm_app_aobench.rb: update links  [ci skip]

* benchmark/bm_app_aobench.rb: update outdated links to the
  original program.  [ruby-dev:48550] [Feature #10247]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47603 b2dd03c8-39d4-4d8f-98ff-823fe69b080e