Subject: bug#40633: Document / implement sorting via absolute value

From: 積丹尼 Dan Jacobson <[email-masked]>
Date: Wed, 15 Apr 2020 05:41:18 +0800

(info "(coreutils) sort invocation")
should mention how to sort via absolute value,
or add an option to do it.
Currently one must use e.g.,
$ seq -2 2|perl -pe 's/^(-)(.*)/$2$1/;' | sort -n
0
1
1-
2
2-