Bug#1092895: good

[nick black]

(1) we no longer have any lintian diagnostics beyond spelling errors ✅
(2) i've replaced these with $(DEBIAN_TARGET_HOST) ✅
(3) we no longer ship msdos-stub.bin ✅
(4) man page has been (minimally) improved ✅
(5) let's just track what upstream is doing for now
(6) this is ongoing but not a blocker
(7) should still probably work on the tests
(8) got rid of include, but we need the vendored libunwind, restored ✅
(9) haven't looked into this
(A) we ought be in NEW by the end of the week