merges r28093 from trunk into ruby_1_9_2.

--
* lib/tempfile.rb (Tempfile#unlink): leave @data.  Assigning nil to
  @data caused double closing error of the same IO in finalizer.  a
  patch from Simon Nicholls.  [ruby-core:29395]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@28266 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/tempfile.rb b/lib/tempfile.rb
index c45865d7a3..54f00de2b0 100755
--- a/lib/tempfile.rb
+++ b/lib/tempfile.rb
@@ -236,7 +236,7 @@ class Tempfile < DelegateClass(File)
       end
       # remove tmpname from remover
       @data[0] = @data[2] = nil
-      @data = @tmpname = nil
+      @tmpname = nil
     rescue Errno::EACCES
       # may not be able to unlink on Windows; just ignore
     end