Fix comments, speed up

Signed-off-by: Knut Ahlers <knut@ahlers.me>

main.go

@@ -106,25 +106,14 @@ func main() {
 }
 
 func addIfNotExists(entries []entry, e entry) []entry {
-	var (
+	for i, pe := range entries {
-		found bool
-		out   []entry
-	)
-
-	for _, pe := range entries {
 		if pe.Domain == e.Domain {
-			found = true
+			entries[i].Comment = strings.Join([]string{pe.Comment, e.Comment}, ", ")
-			pe.Comment = strings.Join([]string{pe.Comment, e.Comment}, ", ")
+			return entries
+		}
 	}
 
-		out = append(out, pe)
+	return append(entries, e)
-	}
-
-	if !found {
-		out = append(out, e)
-	}
-
-	return out
 }
 
 func cleanFromList(blacklist, whitelist []entry) []entry {

provider_hostFile.go

@@ -54,7 +54,7 @@ func (p providerHostFile) GetDomainList(d providerDefinition) ([]entry, error) {
 			continue
 		}
 
-		comment := fmt.Sprintf("From: %q", d.Name)
+		comment := fmt.Sprintf("%q", d.Name)
 		if len(groups) == 3 && strings.Trim(groups[2], "#") != "" {
 			comment = fmt.Sprintf("%s, Comment: %q",
 				comment,