ansible: add comment about set_fact

ansible/sshd_config.yml

@@ -1,16 +1,17 @@
 ---
 - hosts: all
-  # vars:
-  #   conf: /etc/ssh/sshd_config
+  vars:
+    conf: /etc/ssh/sshd_config
   sudo: yes
   tasks:
-  - name: find sshd_config
-    set_fact: conf={{item}}
-    with_first_found:
-    - /etc/ssh/sshd_config
-    - /etc/sshd_config
-  - name: assert sshd_config found
-    assert: conf is defined
+  # - name: find sshd_config
+  #   set_fact: conf={{item}}
+  #   # how to check remote files?
+  #   with_first_found:
+  #   - /etc/ssh/sshd_config
+  #   - /etc/sshd_config
+  # - name: assert sshd_config found
+  #   assert: that="conf is defined"
   - name: Protocol 2
     lineinfile: dest={{conf}}
                 regexp="^(#)?Protocol"