* lib/tempfile.rb: fixed a stupid bug. [ruby-talk:95680]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6011 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/tempfile.rb

@@ -78,7 +78,6 @@ class Tempfile < SimpleDelegator
     @tmpfile.close if @tmpfile
     @tmpfile = nil
     @data[1] = nil if @data
-    @data = nil
   end
   protected :_close
 
@@ -100,7 +99,7 @@ class Tempfile < SimpleDelegator
     _close
     @clean_proc.call
     ObjectSpace.undefine_finalizer(self)
-    @tmpname = nil
+    @data = @tmpname = nil
   end
 
   # Unlinks the file.  On UNIX-like systems, it is often a good idea