rem: printf(".");
add: dprintf(".");
context: dumpBlock(const char *buffer, int size, const char *prefix){	int i;		for (i = 0; i < size;) {		int start = i;		printf(prefix);		for (; i < start+DUMPED_BLOCK_SIZE; i++) {			if (!(i % 4))				printf(" ");			if (i >= size)				printf("  ");			else				printf("%02x", *(unsigned char *)(buffer + i));		}		printf("  ");		for (i = start; i < start + DUMPED_BLOCK_SIZE; i++) {			if (i < size) {				char c = buffer[i];				if (c < 30)					printf(".");				else					printf("%c", c);			} else				break;		}		printf("\n");	}}