🚀 go-pugleaf

I discovered today that if you uux a command that contains one or
more backslashes, you get "execution permission denied" mail.  You
can see if your uuqxt has this problem by allowing execution of "sh"
and doing
     uux !"sh -c echo foo > /dev/ttyxx"
                    (plug in your tty, or another if handy, takes ~ 10 sec)

and then put a backslash in foo and see what happens.

This was observed on HDB running on a 3B2.

If anyone knows of a workaround, or if I am doing something dumb,
please let me know.
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