[PATCH v4] shell: exchange Dijkstra $(( )) evaluator..

[Steffen Nurpmeso]

Steffen Nurpmeso wrote in
 <20220906193906.L5sY8%steffen at sdaoden.eu>:
 ...
 ||Missing license statement here?
 ...
 ||Ah, here is the license. Please move it to line 2 ?
 ...

Btw i have no problem with relicensing this to Public Domain, or
even simply removing the (ISC) license, shall it be integrated
into math.c.  It is more or less licensed only because of the
disclaimer.

--steffen
|
|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)