Comment 1 for bug 1687059

This becomes more important in Artful, where we have these stray .buildinfo files and don't use -nc.

  - dpkg now produces .buildinfo files by default for all uploads,
    including source builds. This should, again, be mostly a no-op
    for you, but there is one gotcha, which is that multiple '-nc'
    runs of dpkg-buildpackage -S will produce a debian/files in
    your source that shouldn't be there. We've been discussing how
    to eradicate that upstream, but if you care deeply about cruft,
    watch out for that.