bug#59403: 29.0.50; Variable with value starting with dash "-" fails to create

[Jim Porter]

On 11/19/2022 10:08 PM, Milan Zimmermann wrote:
> Actual:
>
> ~/dev $ export a="-anything"
> ~/dev $ echo $a
> echo: unrecognized option -a
> ~/dev/ $ echo "$a"
> echo: unrecognized option -a
>
> Expected:
>
> ~/dev $ export a="-anything"
> ~/dev $ echo $a
> -anything
> ~/dev/ $ echo "$a"
> -anything
[snip]
> Major mode: Eshell

Eshell's 'echo' command works somewhat different from other shells (in 
more ways than just this). The Eshell way to spell this is:

  ~ $ echo -- $a
  -anything

(Maybe this could be a feature enhancement for Eshell's echo, but "--" 
is the usual way to do this sort of thing with other commands, at least 
these days. Arguably, this makes Eshell's echo better, since it's more 
consistent with those other commands... at the expense of being less 
consistent with other implementations of echo.)