Fix rule 208 lint issues.

.yamllint

@@ -8,3 +8,4 @@ rules:
 
 ignore: |
   .github/stale.yml
+  .travis.yml

tasks/setup-FreeBSD.yml

@@ -14,3 +14,4 @@
   file:
     path: /var/log/nginx
     state: directory
+    mode: 0755

tasks/setup-OpenBSD.yml

@@ -8,3 +8,4 @@
   file:
     path: /var/log/nginx
     state: directory
+    mode: 0755

tasks/vhosts.yml

@@ -10,6 +10,7 @@
   file:
     path: "{{ nginx_vhost_path }}"
     state: directory
+    mode: 0755
   notify: reload nginx
 
 - name: Add managed vhost config files.