dns/dnsmasq-devel: update to v2.92test9

Changes since v2.92test8, by Simon Kelley

• fixes compiler warnings
• Overhaul extract_addresses() function.

The latter approximates to rewriting parts of the cache to make
it more correct and more useful, see this for details:
https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commitdiff;h=e48a2af4f5e4c0fef9e4da9a591f672e725e3436;hp=e48a2af4f5e4c0fef9e4da9a591f672e725e3436

(cherry picked from commit 00c050e66d9026dafac1d5f25b04102e64672c6f)