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