I have to said that I change he file: build-git-snapshot the line 32 to my $distribution='testing'; because of this warning:
dch --force-distribution -D "squeeze-dev" -v "16.05.04git+20161011182826.70be2835" "Building git snapshot."
dch warning: Recognised distributions are: unstable, testing, stable,
oldstable, experimental, {testing-,stable-,oldstable-,}proposed-updates,
{testing,stable,oldstable}-se