Improve resolver and process docs

resolver/scopes.go

@@ -25,7 +25,9 @@ var (
 
 	// Internal Special-Use Domain
 	// Used by Portmaster for special addressing.
-	internalSpecialUseDomainScope = "." + internalSpecialUseDomain
+	internalSpecialUseDomains = []string{
+		"." + internalSpecialUseDomain,
+	}
 
 	// Multicast DNS
 	// Handling: Send to nameservers with matching search scope, then MDNS
@@ -112,7 +114,7 @@ func GetResolversInScope(ctx context.Context, q *Query) (selected []*Resolver, t
 	defer resolversLock.RUnlock()
 
 	// Internal use domains
-	if strings.HasSuffix(q.dotPrefixedFQDN, internalSpecialUseDomainScope) {
+	if domainInScope(q.dotPrefixedFQDN, internalSpecialUseDomains) {
 		return envResolvers, false
 	}