run-tests: introduce a name for os.environb
On python 2 this is just os.environ, but on python 3 we need to get to
os.environb in several places.
--- a/tests/run-tests.py Tue Apr 14 15:52:45 2015 -0400
+++ b/tests/run-tests.py Tue Apr 14 15:54:13 2015 -0400
@@ -66,6 +66,8 @@
from xml.dom import minidom
import unittest
+osenvironb = getattr(os, 'environb', os.environ)
+
try:
import json
except ImportError: