pstree display characters

[hir...@gmx.de]

Hi everybody,

I just used the statement "pstree" on a new maschine with linux 9.3
prof.

I got something like:

ââsshdâââsshdâââbashâââpstree
ââsvscanââ¬âsuperviseâââqmail-sendââ¬âqmail-clean
â â ââqmail-lspawn
â â ââqmail-rspawn
â â ââsplogger
â ââ2*[superviseâââmultilog]
â ââsuperviseâââtcpserver
ââsvscanbootââ¬âreadproctitle

whereas I expected something like:

├─qmail-send─┬─qmail-clean
│ ├─qmail-lspawn
│ ├─qmail-rspawn
│ └─splogger
├─saslauthd───saslauthd

Does anybody has an idea what I have to change or install to get the
correct display.

Thanks in advance
J. Hirsing