runruby.rb: don't close other fds
* tool/runruby.rb: rubyspec now requires other FDs not to be
closed since 7b6ce1fee.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@52644 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* test/runner.rb (src_testdir): expand real path so that
TestGem#test_self_find_files does not fail by aliased load path when
srcdir contains a symbolic link.
* tool/runruby.rb (srcdir): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35961 b2dd03c8-39d4-4d8f-98ff-823fe69b080e