bug#21325: ls : feature request --width=zero

[Paul Eggert]

Beco wrote:

> For now a workaround is just use a very big number for width, say -w10000,
> but this hack must be checked beforehand in any directory.

That's annoying.  Thanks for the bug report.  I'm a bit dubious about equating 
zero to infinity, though, so I installed the attached patch instead.  It will 
let you use whatever large number you like.  E.g.:

  ls -w999999999999999999999999999999999999999999999999999999999999999999

will do the right thing.  For now, you can work around the problem with:

  ls -w4294967295

which should work on unpatched GNU ‘ls’.

0001-ls-allow-w18446744073709551616.patch
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