In order to tell pbr not to build release notes and create CHANGELOG and
AUTHORS files, we need to pass flags in as environment variables. We
can't just pass these flags though, as that will exclude the rest of the
normal environment set in. So copy the current environment, append our
updates, and pass that in explicitly to the subprocess call.
Change-Id: Ia47e73b51b3216572d51399338e95bd4269a8d1d
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>
f402cde902