base-files: fix mdns ordering in nsswitch.conf

Using the full `mdns` NSS module in front of `dns` for host lookups
causes long delays, e.g., when a telnet client attempts to do reverse
DNS lookups on a public IP address and nss-mdns is using Avahi for local
mDNS resolution.  Upstream recommends using the `_minimal` module before
DNS, and then short-circuiting with `NOTFOUND=return`, because the
`_minimal` module only addresses queries against the .local domain and
link-local addresses. The full `mdns` module is added after DNS to allow
a more broad mDNS search after DNS fails to find a result.

We prefer `mdns_minimal` and `mdns` to their IPv4-specific `mdns4*`
variants because modern mDNS responders seem to provide both IPv6 and
IPv4 records when IPv6 is configured.

Closes: #28038.

srcpkgs/base-files/files/nsswitch.conf

@@ -6,7 +6,7 @@ passwd: 	files
 group: 		files
 shadow: 	files
 
-hosts: 		files mdns mdns4_minimal mdns4 myhostname dns
+hosts: 		files mdns_minimal [NOTFOUND=return] dns mdns
 networks: 	files
 
 protocols: 	files

srcpkgs/base-files/template

@@ -1,7 +1,7 @@
 # Template file for 'base-files'
 pkgname=base-files
 version=0.141
-revision=5
+revision=6
 bootstrap=yes
 depends="xbps-triggers"
 short_desc="Void Linux base system files"