[PATCH v3] env: Avoid using GNU features in awk

[Tom Rini]

On Sat, Nov 20, 2021 at 08:45:34AM -0700, Simon Glass wrote:

> GNU has a very useful third argument to match() but this is not supported
> in the POSIX awk.
> 
> Update the code to cope, so that the script is POSIX-compliant.
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>

Thanks for rewording.

Reviewed-by: Tom Rini <trini at konsulko.com>

-- 
Tom
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