fileutils.rb: fix traversal loop

* lib/fileutils.rb (FileUtils#rmdir): fix traversal loop, not trying
  remove same directory only.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41283 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/fileutils.rb b/lib/fileutils.rb
index 5bdeeaeb08..a23da622e8 100644
--- a/lib/fileutils.rb
+++ b/lib/fileutils.rb
@@ -273,6 +273,7 @@ module FileUtils
         Dir.rmdir(dir = remove_tailing_slash(dir))
         if parents
           until (parent = File.dirname(dir)) == '.' or parent == dir
+            dir = parent
             Dir.rmdir(dir)
           end
         end