Style changes

tasks/known_hosts.yml

@@ -9,14 +9,14 @@
         - '{{ role_path }}/vars'
 
 - name: install packages
-  become: yes
+  become: true
   package:
     name: '{{ item }}'
     state: present
   loop: '{{ known_hosts_packages }}'
 
 - name: retrieve user $HOME
-  shell: 'echo $HOME' # noqa 301
+  shell: 'echo $HOME'
   become_user: '{{ user }}'
   register: home_stats