Reduce compiler warning: variable might be used uninitialized, by giving

an initial value.

usr.bin/tset/map.c

@@ -196,6 +196,7 @@ mapped(type)
 	MAP *mapp;
 	int match;
 
+	match = 0;
 	for (mapp = maplist; mapp; mapp = mapp->next)
 		if (mapp->porttype == NULL || !strcmp(mapp->porttype, type)) {
 			switch (mapp->conditional) {

usr.bin/whois/whois.c

@@ -279,6 +279,7 @@ whois(const char *query, const char *hostname, int flags)
 	int i, s;
 	size_t c, len;
 
+	s = -1;
 	hostres = gethostinfo(hostname, 1);
 	for (res = hostres; res; res = res->ai_next) {
 		s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);