* lib/rdoc/servlet.rb:  Fixed root search paths, filesystem paths
  instead of HTTP paths were returned.
* test/rdoc/test_rdoc_servlet.rb:  Test for above.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39071 b2dd03c8-39d4-4d8f-98ff-823fe69b080e