ipython/ipython — pull request #3632 by ivanov (2013-07-14 07:54:13+00:00)
Title: Set calling program to UNKNOWN, when argv not in sys (take #2)

if merged, this PR supersedes #3460.

There, we were only waiting on an updated comment, so I just went ahead and updated the comment (keeping the original commit from @tomspur), so we can can move forward with the merge.