How can add CRLF to variable

From: DrumFire (dpphlnNOSPAM_at_tin.it)
Date: 11/28/03 

Date: Fri, 28 Nov 2003 20:38:29 GMT

Hi,

I've this simple source:

set messaggio [ concat ciao pippo \n ]
set messaggio [ concat $messaggio ciao antani ]
puts $messaggio

The Output is this:

ciao pippo ciao antani

I want instead that output is like this:

ciao pippo
ciao antani

How can I do? I try to insert \n at the end of concat, but
it seems doesn't work.

Bye