bug#7305: sort command not working in version 5.5 as it did in 4.7

[Paul Eggert]

On 10/29/10 13:12, Michael Warnock wrote:
> sort +8

The command "_POSIX2_VERSION=0 sort --debug +8" says:

  sort: obsolescent key `+8' used; consider `-k 9' instead

which is good advice.  Hmm, maybe we should change --debug
so that it also outputs this advice when _POSIX2_VERSION
is not set to a low value?

For more, please see:

http://www.gnu.org/software/coreutils/manual/html_node/sort-invocation.html

and look for "obsolescent".