Clean Singleton Docstrings

[Rustom Mody]

On Thursday, July 14, 2016 at 5:24:50 AM UTC+5:30, Peter Otten wrote:
> Lawrence D’Oliveiro wrote:
> > And there are still those who think that Python’s lax acceptance of
> > non-boolean values as booleans is a good idea...
> 
> I don't think this particular problem serves as an argument for stricter 
> handling of boolean expressions because the fix
<details Ive yet  to grok snipped>

I was going to apologise for the snark
Then I see thats not my words; I said something along similar lines
Doesn't mean python needs to change
Just that suggesting that python's bool notion is straightforward is an
unnecessary lie – especially to newbies.