'sudo crm cluster copy <relative_path>' output could be more informative

[zzhou1]

Sounds better to make the output more informative a little, for example,

adm@tw-1:~> sudo crm cluster copy .ssh/authorized_keys
INFO: copied to root@tw-2:.ssh/authorized_keys

[nicholasyang2022]

And there is a more severe problem: crmsh.prun.pcopy_to_remote skips local host when source path is identical in string to destination path. When a relative path is used, it causes inconsistent behavior between local host and remote host.

For example, root@node1:/tmp # crm cluster copy foo copies /tmp/foo from node1:/tmp/foo to node2:/root/foo, but not to node1:/root/foo