[ruby/fileutils] Fix the test permission of "test_rm_rf"
The test was added for [Bug #6756]. The ticket insisted FileUtils.rm_rf should delete an empty directory even if its
permission is 000. However, the test tried to delete a directory with
permission 700.
Added by mame (Yusuke Endoh) almost 3 years ago
[ruby/fileutils] Fix the test permission of "test_rm_rf"
The test was added for [Bug #6756]. The ticket insisted
FileUtils.rm_rfshould delete an empty directory even if itspermission is 000. However, the test tried to delete a directory with
permission 700.
https://github.com/ruby/fileutils/commit/d6c2ab2c01