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-rw-r--r--lib/rack/mock.rb1
1 files changed, 0 insertions, 1 deletions
diff --git a/lib/rack/mock.rb b/lib/rack/mock.rb
index 04d27a61..4ebc4df1 100644
--- a/lib/rack/mock.rb
+++ b/lib/rack/mock.rb
@@ -163,7 +163,6 @@ module Rack
     def initialize(status, headers, body, errors=StringIO.new(""))
       @original_headers = headers
       @errors           = errors.string if errors.respond_to?(:string)
-      @body_string      = nil
 
       super(body, status, headers)
     end