script/setup_rootless.sh: chown nit

This fixes the following warning (seen on Fedora 42 and Ubuntu 24.04):

	+ sudo chown -R rootless.rootless /home/rootless
	chown: warning: '.' should be ':': ‘rootless.rootless’

Signed-off-by: Kir Kolyshkin <[email protected]>

Author: kolyshkin

script/setup_rootless.sh

@@ -12,4 +12,4 @@ ssh-keygen -t ecdsa -N "" -f "$HOME/.ssh/rootless.key"
 sudo mkdir -p -m 0700 /home/rootless/.ssh
 sudo cp "$HOME/.ssh/rootless.key" /home/rootless/.ssh/id_ecdsa
 sudo cp "$HOME/.ssh/rootless.key.pub" /home/rootless/.ssh/authorized_keys
-sudo chown -R rootless.rootless /home/rootless
+sudo chown -R rootless:rootless /home/rootless