Bug#518752: update-exim4.conf: line 38: $@: unbound variable

[Andreas Metzler]

On 2009-03-08 Alban browaeys <prahal at yahoo.com> wrote:
> >From \amethyst on freenode #bash  (Neil Moore) :
> <\amethyst> it is a bug I think
> <\amethyst> that you still get the error even with ${@-foo}
> <\amethyst> but ${@+"$@"}  probably shouldn't error out
> <\amethyst> since ${foo+bar}  does not
> <\amethyst> or ${foo+"$foo"}

> I believe this should be cloned to bash (kept here too because the
> current $@ is to be fixed either way).
[...]

Hello,

I think I am going to drop set -u since I have got the feeling that
the decreased readability due the workarounds for $@ and $* outweighs
the benefit of set -u.

I still consider this upstream change a bad idea. There is a reason
why "$@" expands to nothing instead of an empty string if there are no
commandline args.
cu andreas
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