tree e747dcbe2550d7f7eac44b6d8ba94287af98a6c0
parent e8c56ae2d77e27b444d35d29b168e2212077e71c
author Masatake YAMATO <yamato@redhat.com> 1618906142 +0900
committer Karel Zak <kzak@redhat.com> 1621856393 +0200

lsns: unify the code and option for printing process based tree and namespace based trees

Suggested by Karel Zak.

`--tree` option is introduced as replacement for `--nstree`.
In addition to `parent` and `owner`, `--tree` take `process` as the
option argument.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>