For ARC Optimizing and Analized Build warning

[nidamanx]

Changed as you can see in these lines.
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//
// base64EncodedString
//
// Creates an NSString object that contains the base 64 encoding of the
// receiver's data. Lines are broken at 64 characters long.
//
// returns an autoreleased NSString being the base 64 representation of the
// receiver.
//

• (NSString *)base64EncodedString
  {
  size_t outputLength;
  char *outputBuffer = NewBase64Encode([self bytes], [self length], true, &outputLength);

  // Delete the Autorelease in ORIG
  NSString *result = [[NSString alloc]
  initWithBytes:outputBuffer
  length:outputLength
  encoding:NSASCIIStringEncoding];
  free(outputBuffer);
  return result;
  }

// added by Hiroshi Hashiguchi

• (NSString *)base64EncodedStringWithSeparateLines:(BOOL)separateLines
  {
  // ORIG size_t outputLength;
  size_t outputLength = 0;
  char *outputBuffer = NewBase64Encode([self bytes], [self length], separateLines, &outputLength);

  // Delete the Autorelease in ORIG
  NSString *result = [[NSString alloc]
  initWithBytes:outputBuffer
  length:outputLength
  encoding:NSASCIIStringEncoding];
  free(outputBuffer);
  return result;
  }