Add comment about spec compliance

warc-dump-responses.c

@@ -25,6 +25,7 @@ int main(int argc, char* argv[]) {
 	// Read stdin, decode WARC, dump all response record bodies to stdout.
 	// One LF is inserted at the end of each response to ensure that a new record always begins on a new line.
 	// Headers must fit into BUFSIZE.
+	// Does not fully comply with the WARC spec. For example, headers must be capitalised canonically, and continuation lines are unsupported.
 	char buf[2 * BUFSIZE];
 	size_t n;
 	int state = STATE_BEFORE_RECORD;