Minor patch - str.lstrip() in place of loops

[Gustavo Niemeyer]

Hello Neil,

(...)
> The obvious thing to do was to submit a patch replacing such things
> with 'return filepath.lstrip("/")'. I personally think it improves
> readability, and I'm sure the versions of that lack lstrip() are no
> longer intended to be supported by smart.
> I hope this is appropriate to the list.

Probably best for a tracker bug, but the list is fine too.  That's been
applied on trunk.  Thank you very much!

-- 
Gustavo Niemeyer
http://niemeyer.net