[647] Avoid "Use of uninitialized value in join"

[Andy Armstrong]

On 2 Oct 2007, at 01:27, Michael G Schwern wrote:
> Probably an oversight this time, but I'd like to request that code  
> changes and
> code tidying be done in separate commits.  Mixed together it makes  
> it hard to
> see the significant changes in the diff.

It's an oversight /every/ time :)

I have Perltidy bound to a hotkey that I keep compulsively hitting.  
I'll attempt to retrain my muscle memory.

-- 
Andy Armstrong, Hexten