[PATCH] cli_readline: Only insert printable chars

[Tom Rini]

On Sun, Nov 22, 2020 at 02:58:45PM +1000, Steve Bennett wrote:

> There should be no need to insert non-printable characters
> and this prevents line editing getting confused.
> 
> Signed-off-by: Steve Bennett <steveb at workware.net.au>

Applied to u-boot/master, thanks!

-- 
Tom
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