Avahi-daemon-check-dns.sh takes too much time on every connecting to network

Every time I connect to network using NetworkManager, 10s is spent on checking if avahi may be run, which is majority of connecting time.

Control flow is as follows -> NetworkManager -> /sbin/resolvconf -> /etc/resolvconf/update.d/libc -> /etc/resolvconf/update-libc.d/avahi-daemon -> /usr/lib/avahi/avahi-daemon-check-dns.sh -> host -t soa .local

If everything is alright (no .local domain, avahi may be run) host shall fail due to timeout, which by default takes 10s.
I believe either dns lookup timeout should be lowered (host -t soa -W 1 .local) or the avahi-daemon-check-dns.sh script shall be run asynchronously.

It is particularly annoying when waking up from suspend - resume takes 3s, main part of network configuration 4s, but then avahi 10s.

To reproduce:
nmcli d disconnect iface <interface>; time nmcli c up id <your network>
chmod -x /usr/lib/avahi/avahi-daemon-check-dns.sh
nmcli d disconnect iface <interface>; time nmcli c up id <your network>
Or just:
time /usr/lib/avahi/avahi-daemon-check-dns.sh

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: avahi-daemon 0.6.31-2ubuntu4.1
ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
Uname: Linux 3.11.0-14-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
Date: Sun Nov 24 00:36:05 2013
InstallationDate: Installed on 2013-11-16 (7 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
MarkForUpload: True
SourcePackage: avahi
UpgradeStatus: No upgrade log present (probably fresh install)