Changes in release 2.1
[2.0.12]
* kill: new program
+* who accepts new options: --all (-a), --boot (-b), --dead (-d), --login,
+ --process (-p), --runlevel (-r), --short (-s), --time (-t), --users (-u).
+ The -u option now produces POSIX-specified results and is the same as
+ the long option `--users'. --idle is no longer the same as -u.
* The following changes apply on systems conforming to POSIX 1003.1-2001,
and are required by the new POSIX standard:
- `date -I' is no longer supported. Instead, use `date --iso-8601'.