Update to -test4 release.
Changelog: http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=blob;f=CHANGELOG;h=93c73d01e19562d27d5c56a3a87c8211422f20a1;hb=d917275e481add809cd5c40650f339ae994ee35f#l1