Environment is not inherited by default when running comands

[ricky]

On Fedora's Transifex instance, we noticed that git commands were not inheriting the proper environment when called from Transifex. This patch passes None to subprocess.Popen, which triggers the default behavior of inheriting the environment from the original process:

diff -r 3f20ee4a3423 transifex/txcommon/commands.py
--- a/transifex/txcommon/commands.py    Thu Mar 11 18:26:40 2010 -0300
+++ b/transifex/txcommon/commands.py    Thu Mar 11 19:06:19 2010 -0500
@@ -80,7 +80,7 @@
     with_extended_output = kw.pop('with_extended_output', False)
     with_exceptions = kw.pop('with_exceptions', True)
     with_raw_output = kw.pop('with_raw_output', False)
-    env = kw.pop('env', {})
+    env = kw.pop('env', None)
 
     # if command is a string split to a list

[glezos]

Fixed in r1405.

Thanks ricky for debugging this. It will be included in 0.8.1.