Comment 11 for bug 1594596

This looks good. Just one more small thing:

N: Processing source package arc-firefox-theme (version 49.20160920, arch source) ...
W: arc-firefox-theme source: non-native-package-with-native-version
N:
N: This package has a native version number (a version number without a
N: dash and a Debian portion) but is built as a non-native package. Usually
N: this is an error caused by forgetting the Debian revision for a
N: non-native package. In this case the solution is to add a Debian
N: revision.
N:
N: This error can also happen if the package is a 1.0 source format and
N: there is a stray *.orig.tar.gz file in the parent directory. The file
N: will trick dpkg-source into believing it was supposed to be a non-native
N: package. Here the error can be solved by converting it to 3.0 (native)
N: package or removing/renaming the *.orig.tar.gz file.
N:
N: If you do not know what a "native" or a "non-native" package is, you are
N: very likely working on a non-native package.
N:
N: Severity: normal, Certainty: certain
N:
N: Check: cruft, Type: source

Should this be 49.20160920-0ubuntu1 instead?