Updating dpkg-buildflags to enable reproducible=+fixfilepath by default

[Sune Vuorela]

On 2020-10-27, Vagrant Cascadian <vagrant at reproducible-builds.org> wrote:
> Though, of course, identifying the exact reproducibility problem would
> be preferable. One of the common issues is test suites relying on the
> behavior of __FILE__ returning a full path to find fixtures or other
> test data.

has QFIND_TESTDATA been adapted to work with this, or are we just
"lucky" that most packages don't actually build and run test suites?

I don't think that we should make it harder for maintainers to enable
test suites on their packages, when we can just record the filepath in
the build info and still have things reproducible.

/Sune