Not able to discover/browse service using service subtype

[ShrutiGunwant17]

1. I have publish service with type and subtype by parsing comma separated list as (_os._udp , _windows) using
   example (https://github.com/grandcat/zeroconf/blob/master/examples/register/server.go)

2. Able to discover/browse service using (https://github.com/grandcat/zeroconf/blob/master/examples/resolv/client.go) with default type as "_os._udp"

3. But not able to discover service with the subtype.
   Provide comma separated list as (service = flag.String("service", "_os._udp, _windows", "Set the service type of the new service.")
   This gives result as "No more entries".

[hspaay]

I ran into this issue as well when implementing discovery for the web of things. (https://w3c.github.io/wot-discovery/#introduction-dns-sd-sec)

Looks like this was fixed in #36.
However, the date of that fix is may 28, 2020.
Version 1.0.0 was tagged on Jan 29, 2020 (https://github.com/grandcat/zeroconf/releases/tag/v1.0.0) and doesn't have this fix.

@grandcat Would it be possible to get a new tag so it can be used.