Wrap the return result of a wrapped function.

Wrap the return result of a wrapped function.

This avoids the loss of the value, and the pylint warning.

BUG=chromium:98600
TEST=manual

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=104529

[Peter Mayo, 2011-10-07 04:44:59]

Before:
>>> import command_wrapper as w
>>> import time
>>> def mess(d=1,r=4):
...    time.sleep(d)
...    return r
... 
>>> print w.RunWithTimeout(timeout=0.2, func=mess, d=4)
None
>>> print w.RunWithTimeout(timeout=0.2, func=mess, d=0)
None
>>> print w.RunWithTimeout(timeout=3, func=mess, d=1, r=5)
None
>>> 


After:

>>> import command_wrapper as w
>>> import time
>>> def mess(d=1,r=4):
...   time.sleep(d)
...   return r
... 
>>> print w.RunWithTimeout(timeout=0.2, func=mess, d=4)
None
>>> print w.RunWithTimeout(timeout=0.2, func=mess, d=0)
4
>>> print w.RunWithTimeout(timeout=0.2, func=mess, d=0, r=5)
5
>>> print w.RunWithTimeout(timeout=0.2, func=mess, d=1, r=5)
None
...

[bradn, 2011-10-07 17:56:28]

lgtm

[M-A Ruel, 2011-10-07 18:01:56]

lgtm

[commit-bot: I haz the power, 2011-10-07 18:37:18]

CQ is trying the patch. Follow status at
https://chromium-status.appspot.com/cq/petermayo@chromium.org/8183010/1

[commit-bot: I haz the power, 2011-10-07 18:37:26]

Change committed as 104529