Testsuite bugfix for libgdmaps load-only check via glob

The glob pattern would pick up formats that are installed
  in /usr/share/GeoIP/ but are not the supported City or
  Country formats, thus failing when it shouldn't.
make dmn_log fmtbuf stuff more accommodating of odd/large data
remove arbitrary limit on dclist log/print output
Bugfix: "nets" data normalization was wrong in some cases...

The code that normalizes network lists from "nets" files would
  fail on certain forms of input containing duplicates and/or
  mergeable subnets in the data.  This refactors the normalization
  code to handle these corner cases correctly.
It also introduces a small functional change: prior to this commit,
  conflicting explicit duplicates were a hard error (same
  network/mask -> two separate dclists), and implicit duplicates
  (where other subnets had to be merged before the duplicate was
  obvious) were completely mishandled.  Now both conflict cases
  result in a warning and an arbitrary choice between the conflicting
  results.
nlist: add more test coverage, remove dead branches
Bugfix: faulty assert() in ntree v4 lookup code

The assert was probably copied from lookup_v6 to lookup_v4, but
  the IP address in the v4 version is not a pointer, it's a 32-bit
  raw value, and thus the assert fails if one does a lookup on
  the address 0.0.0.0.

Found by Mark Bergsma testing a variant of the code that was copied
  to the varnish module libvmod_netmapper for WMF use.

The assert fail can be triggered by a real packet which contains an
  edns-client-subnet address of 0.0.0.0 and a non-zero source mask
  which queries a name served by plugin_geoip, if the daemon was
  built in debug mode.  I haven't been able to produce any failure
  in non-debug builds, though, so I suspect that gcc isn't doing
  anything dangerous with the related __builtin_unreachable()
  optimization in non-debug builds, seeing as it's not a pointer
  check and there are no obvious math optimizations, either.
Testsuite now checks EDNS comparisons more thoroughly

Previously, the testsuite wasn't really comparing the deeper
  option data in EDNS OPT RRs, such as edns-client-subnet info.
update a valgrind suppression
fix annoying clang-analyzer warning via refactor
1.10.1 release stuff
Merge tag 'v1.10.1' into debian

Release 1.10.1
Minor fixup to gbp.conf
New upstream release, 1.10.1-1