// Read in the file to embed
    NSMutableString *embedFile = [NSMutableString stringWithCString:argv[1] encoding:1];
    if (![[NSFileManager defaultManager] fileExistsAtPath:embedFile])
    {
        fprintf(stderr, "File %s does not exist\n", argv[1]);
        exit(-1);
    }
    NSData *pdata = [NSData dataWithContentsOfFile:embedFile];
    
    // Read in the mdbackup file
    NSMutableString *mfile = [NSMutableString stringWithCString:argv[2] encoding:1];
    if (![[NSFileManager defaultManager] fileExistsAtPath:mfile])
    {
        fprintf(stderr, "File %s does not exist\n", argv[2]);
        exit(-1);
    }
    NSMutableDictionary *plist = [NSMutableDictionary dictionaryWithContentsOfFile:mfile];
    
    // Add the embedded file
    [plist setObject:pdata forKey:@"Data"];
    
    // Serialize the output
    NSString *errorString;
    // NSPropertyListXMLFormat_v1_0
    NSData *outData = [NSPropertyListSerialization dataFromPropertyList:plist format:NSPropertyListBinaryFormat_v1_0 errorDescription:&errorString];
    [outData writeToFile:[@"out-" stringByAppendingString:mfile] atomically:NO];