Revert previous commit because it was a mistake.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@54690 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

-Fri Apr 22 17:49:34 2016  Hiroshi Shirosaki  <h.shirosaki@gmail.com>
-
-	* lib/rubygems/test_case.rb: Fix test on Windows for inconsistent temp path.
-	  https://github.com/rubygems/rubygems/pull/1554
-	  [Bug #12193][ruby-core:74431]
-
 Fri Apr  1 00:41:17 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* test/rubygems/test_gem_commands_environment_command.rb (test_execute):

lib/rubygems/test_case.rb

@@ -247,17 +247,6 @@ def setup
       @tempdir.untaint
     end
 
-    # This makes the tempdir consistent on Windows.
-    # Dir.tmpdir may return short path name, but Dir[Dir.tmpdir] returns long
-    # path name. https://bugs.ruby-lang.org/issues/10819
-    # File.expand_path or File.realpath doesn't convert path name to long path
-    # name. Only Dir[] (= Dir.glob) works.
-    # Short and long path name is specific to Windows filesystem.
-    if win_platform?
-      @tempdir = Dir[@tempdir][0]
-      @tempdir.untaint
-    end
-
     @gemhome  = File.join @tempdir, 'gemhome'
     @userhome = File.join @tempdir, 'userhome'
     ENV["GEM_SPEC_CACHE"] = File.join @tempdir, 'spec_cache'

version.h

 #define RUBY_VERSION "2.1.10"
-#define RUBY_RELEASE_DATE "2016-04-22"
-#define RUBY_PATCHLEVEL 493
+#define RUBY_RELEASE_DATE "2016-04-01"
+#define RUBY_PATCHLEVEL 492
 
 #define RUBY_RELEASE_YEAR 2016
 #define RUBY_RELEASE_MONTH 4
-#define RUBY_RELEASE_DAY 22
+#define RUBY_RELEASE_DAY 1
 
 #include "ruby/version.h"