FileUtils.rmdir use remove_tailing_slash

* lib/fileutils.rb (FileUtils.rmdir): use remove_tailing_slash.
* test/fileutils/test_fileutils.rb: test for above.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41052 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Mon Jun  3 23:58:19 2013  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* lib/fileutils.rb (FileUtils.rmdir): use remove_tailing_slash.
+	* test/fileutils/test_fileutils.rb: test for above.
+
 Mon Jun  3 23:47:55 2013  Tanaka Akira  <akr@fsij.org>
 
 	* bignum.c (bitlength_bdigit): New function.

lib/fileutils.rb

@@ -270,7 +270,7 @@ module FileUtils
     return if options[:noop]
     list.each do |dir|
       begin
-        Dir.rmdir(dir = dir.chomp(?/))
+        Dir.rmdir(dir = remove_tailing_slash(dir))
         if parents
           until (parent = File.dirname(dir)) == '.' or parent == dir
             Dir.rmdir(dir)

test/fileutils/test_fileutils.rb

@@ -1221,6 +1221,14 @@ class TestFileUtils
 
   def test_rmdir
     check_singleton :rmdir
+
+    begin
+      Dir.rmdir '/'
+    rescue => e
+      assert_raise(e.class) {
+        rmdir '/'
+      }
+    end
   end
 
   def test_rmtree