* lib/tmpdir.rb (Dir.mktmpdir): Accept nil again, as Ruby 2.1.

[ruby-core:66943] [Bug #10616] Fixed by Alex Slynko.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48905 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Sat Dec 20 17:49:03 2014  Tanaka Akira  <akr@fsij.org>
+
+	* lib/tmpdir.rb (Dir.mktmpdir): Accept nil again, as Ruby 2.1.
+	  [ruby-core:66943] [Bug #10616] Fixed by Alex Slynko.
+
 Sat Dec 20 11:22:58 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/fiddle/depend, ext/fiddle/extconf.rb: try to build bundled

lib/tmpdir.rb

@@ -81,8 +81,8 @@ class Dir
   #    FileUtils.remove_entry dir
   #  end
   #
-  def Dir.mktmpdir(prefix_suffix="d", *rest)
-    path = Tmpname.create(prefix_suffix, *rest) {|n| mkdir(n, 0700)}
+  def Dir.mktmpdir(prefix_suffix=nil, *rest)
+    path = Tmpname.create(prefix_suffix || "d", *rest) {|n| mkdir(n, 0700)}
     if block_given?
       begin
         yield path