[perl #62316] printf with too few arguments returns "Null PMC Access"

[jn...@jnthn.net via RT]

On Tue Jan 13 13:06:01 2009, masak wrote:
> Rakudo r35481 reacts badly to a printf wherein the variables needed
> are fewer than the variables available.
> 
> $ perl6 -e 'printf("%s")'
> Null PMC access in get_string()
> [...]

Now it returns a Failure. Pushed fix in git 9efc9fe and tests unfudged.

Thanks,

Jonathan