[PATCH] tests: build.sh: avoid copying .config if identical

[Jouni Malinen]

On Sun, Oct 11, 2020 at 11:04:38AM +0200, Johannes Berg wrote:
> If the .config file is already identical, avoid copying
> it even if -f was specified; this improves build time if
> nothing has changed.

Thanks, applied.
 
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Jouni Malinen                                            PGP id EFC895FA