Ignore stderr with 'svn propget reviewboard:url .
Review Request #4670 — Created Oct. 1, 2013 and submitted
On my system the local en_US.UTF-8 does not exist (I have he_IL.UTF-8). rbutils.utils.process.execute() forces the environment to be LC_ALL=en_US.UTF-8, LANGUAGE=en_US.UTF-8. I can't override this from outside. This means that svn will complain to the standad error about not being able to set LC_CTYPE.
Furthermore, by default that function (execute()) will redirect stderr with stdout. This resulted in the reviewbord server being '<long message from svn><the URL>'.
This fix forces not redirecting the standard error there. Though just in this specific spot.