fixed sed parameters

dnsapi/dns_dynu.sh

@@ -169,7 +169,7 @@ _get_recordid() {
     return 0
   fi
 
-  _dns_record_id=$(printf "%s" "$response" | sed -e 's/[^{]*\({[^}]*}\)[^{]*/\1\n/g' | grep "\"text_data\":\"$txtvalue\"" | sed -e 's/.*"id":\([^,]*\).*/\1/')
+  _dns_record_id=$(printf "%s" "$response" | sed -e 's/[^{]*\({[^}]*}\)[^{]*/\1\n/g' | grep "\"text_data\":\"$txtvalue\"" | sed -n -e 's/.*"id":\([^,]*\).*/\1/p')
 
   return 0
 }