Update to 2020-07-16 17:00

roles/ssh/tasks/main.yml

@@ -47,7 +47,7 @@
   iptables_raw:
     name: sshd_ports
     state: "{{ (sshd_src_ip is defined and sshd_src_ip | length > 0) | ternary('present','absent') }}"
-    rules: "-A INPUT -m state --state new -p tcp -m multiport --dports {{ sshd_ports | join(',') }} -s {{ sshd_src_ip | join(',') }} -j ACCEPT"
+    rules: "-A INPUT -m state --state new -p tcp -m multiport --dports {{ sshd_ports | join(',') }} -s {{ sshd_src_ip | flatten | join(',') }} -j ACCEPT"
   when: iptables_manage | default(True)
   tags: ssh,firewall