add: if (match_flags & MATCHFLG_WORD_SPLIT) *op++ = 'w';
context: char *get_rule_prefix(int match_flags, const char *pat, int sending,		      unsigned int *plen_ptr){	static char buf[MAX_RULE_PREFIX+1];	char *op = buf;	int legal_len = sending && protocol_version < 29 ? 1 : MAX_RULE_PREFIX;	if (match_flags & MATCHFLG_PERDIR_MERGE) {		if (legal_len == 1)			return NULL;		*op++ = ':';	} else if (match_flags & MATCHFLG_INCLUDE)		*op++ = '+';	else if (legal_len != 1	    || ((*pat == '-' || *pat == '+') && pat[1] == ' '))		*op++ = '-';	else		legal_len = 0;	if (match_flags & MATCHFLG_EXCLUDE_SELF)		*op++ = 'e';	if (match_flags & MATCHFLG_CVS_IGNORE)		*op++ = 'C';	else {		if (match_flags & MATCHFLG_WORD_SPLIT)			*op++ = 's';		if (match_flags & MATCHFLG_NO_INHERIT)			*op++ = 'n';		if (match_flags & MATCHFLG_NO_PREFIXES) {			if (match_flags & MATCHFLG_INCLUDE)				*op++ = '+';			else				*op++ = '-';		}	}	if (op - buf > legal_len)		return NULL;	if (legal_len)		*op++ = ' ';	*op = '\0';	if (plen_ptr)		*plen_ptr = op - buf;	if (op - buf > MAX_RULE_PREFIX)		overflow("get_rule_prefix");	return buf;}