Replace deprecated "sudo" with "become"

tasks/install.yml

@@ -32,7 +32,7 @@
     repo={{ item.src.url }}
     dest=/var/www/{{ item.src.target }}
     force=yes
-  sudo: no
+  become: no
   with_items: drupal_settings
   when: item.root in drupal_missing_repos.stdout_lines and item.src.mode == 'svn'
   notify:
@@ -51,7 +51,7 @@
 
 - name: "Drupal | Drush | Install and update Drupal trees from Drush Make"
   shell: drush make --force-complete '/var/www/drush/{{ item.src.makefile }}.make' . chdir='/var/www/{{ item.root }}'
-  sudo: no
+  become: no
   with_items: drupal_settings
   when: item.root in drupal_missing_repos.stdout_lines and item.src.mode == 'drush'
   notify:
@@ -65,7 +65,7 @@
     dest: "{{ item.src.git.target }}"
     force: "yes"
     version: "{{ item.src.git.branch|default(omit) }}"
-  sudo: false
+  become: false
   with_items: drupal_settings
   when: item.root in drupal_missing_repos.stdout_lines and item.src.mode == 'gitscript'