fails(JRUBY-5656):Array#pack with format 'N' taints the output string if the format string is tainted
fails(JRUBY-5656):Array#pack with format 'N' raises a TypeError when passed nil
fails(JRUBY-5656):Array#pack with format 'n' taints the output string if the format string is tainted
fails(JRUBY-5656):Array#pack with format 'n' raises a TypeError when passed nil
