[PATCH] shell: avoid segfault on ${0::0/0~09J}. Closes 15216

[Radoslav Kolev]

On 12/29/22 3:45 PM, Ron Yorston wrote:
> Both ash and hush segfault when asked to evaluate ${0::0/0~09J}.
> 
> The stack for integer values in the arithmetic code was too small:
> '09J' results in three integers.  The leading zero starts an octal
> number but '9' isn't an octal digit so '0', '9' and the variable
> 'Z' are placed on the stack.
> 
> Signed-off-by: Ron Yorston <rmy at pobox.com>

Hello,

is there some problem with this patch or another reason it's not applied 
yet? Or it just slipped trough the cracks? If so please consider 
applying it.

Thank you!
Rado