Re: preventing the leading space in process substitution

[Bart Schaefer <schaefer@brasslantern.com>]

On Sep 11,  2:05pm, Peter Stephenson wrote:
}
} They are currently reset explicitly.  I think for most traps that's to
} avoid the subshell picking up a signal destined for the parent shell
} (unless the trap has specifically been set in the subshell), but it's
} possible Bart has detailed knowledge.

Not this time, I'm afraid.  I'd expect ignored signals (trap '' ...)
to be preserved in subshells, but for other signals passing through
to the parent is as good a guess as any.
 
} I can't see why we shouldn't keep the debug-related traps, ZERR and
} DEBUG, alive in subshells.

I can't think of any reason either, unless maybe there are cases where
it could result in the trap being executed in both the subshell and
the parent.