Updated dns_dynu.sh sed usage to be FreeBSD compatible

dnsapi/dns_dynu.sh

@@ -162,7 +162,8 @@ _get_recordid() {
     return 0
   fi
 
-  _dns_record_id=$(printf "%s" "$response" | sed -e 's/[^{]*\({[^}]*}\)[^{]*/\1\n/g' | grep "\"textData\":\"$txtvalue\"" | sed -e 's/.*"id":\([^,]*\).*/\1/')
+  _dns_record_id=$(printf "%s" "$response" | sed -e 's/[^{]*\({[^}]*}\)[^{]*/\1\
+/g' | grep "\"textData\":\"$txtvalue\"" | sed -e 's/.*"id":\([^,]*\).*/\1/')
   return 0
 }