test_cp_preserve_permissions should care about umask
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60281 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_cp_preserve_permissions should care about umask
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60281 b2dd03c8-39d4-4d8f-98ff-823fe69b080e