akr	2011-01-13 20:58:20 +0900 (Thu, 13 Jan 2011)

  New Revision: 30535

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=30535

  Log:
    update doc.

  Modified files:
    trunk/dir.c

Index: dir.c
===================================================================
--- dir.c	(revision 30534)
+++ dir.c	(revision 30535)
@@ -944,6 +944,8 @@
  *  also the discussion of permissions in the class documentation for
  *  <code>File</code>.
  *
+ *    Dir.mkdir(File.join(Dir.home, ".foo"), 0700) #=> 0
+ *
  */
 static VALUE
 dir_s_mkdir(int argc, VALUE *argv, VALUE obj)

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