timedated: fix skipping of comments in config file

Reading file '/usr/lib/systemd/ntp-units.d/80-systemd-timesync.list'
Failed to add NTP service "# This file is part of systemd.", ignoring: Invalid argument
Failed to add NTP service "# See systemd-timedated.service(8) for more information.", ignoring: Invalid argument

:(

src/timedate/timedated.c

@@ -211,7 +211,7 @@ static int context_parse_ntp_services_from_disk(Context *c) {
                                 break;
 
                         word = strstrip(line);
-                        if (isempty(word) || startswith("#", word))
+                        if (isempty(word) || startswith(word, "#"))
                                 continue;
 
                         r = context_add_ntp_service(c, word, *f);