[build2] [bug] Stack buffer overrun with incorrect var name and file grab

[Boris Kolpackov]

Klaim - Joël Lamotte <mjklaim at gmail.com> writes:

>     # Both the non-defined variable ("lol") and the file grab are required
>     # to expose the issue.
>     kikoo = $lol/**
>     target: {cxx}{$kikoo}
>
> error: b -q
> configure('G:\perso\experiments\capture_fail\'@'./config-capturefail/capture_fail-1.0.0\')
> terminated abnormally: stack buffer overrun

Thanks for the report, we will look into it.

Boris