Replace deprecated "sudo_user" with "become_user"

tasks/main.yml

@@ -43,7 +43,7 @@
 
 - name: create database user
   become: yes
-  sudo_user: postgres
+  become_user: postgres
   postgresql_user:
     name: git
     role_attr_flags: CREATEDB
@@ -51,7 +51,7 @@
 
 - name: create database table
   become: yes
-  sudo_user: postgres
+  become_user: postgres
   postgresql_db:
     name: gitlabhq_production
     owner: git
@@ -59,7 +59,7 @@
 
 - name: clone gitlab source
   become: yes
-  sudo_user: git
+  become_user: git
   git:
     repo: https://gitlab.com/gitlab-org/gitlab-ce.git
     version: 7-12-stable
@@ -129,7 +129,7 @@
 
 - name: install gems
   become: yes
-  sudo_user: git
+  become_user: git
   command: bundle install -j8 --deployment --without development test mysql aws kerberos
   args:
     chdir: /home/git/gitlab
@@ -137,7 +137,7 @@
 
 - name: install gitlab shell
   become: yes
-  sudo_user: git
+  become_user: git
   command: bundle exec rake gitlab:shell:install[v2.6.3] REDIS_URL=unix:/var/run/redis/redis.sock RAILS_ENV=production
   args:
     chdir: /home/git/gitlab
@@ -145,7 +145,7 @@
 
 - name: initialize database
   become: yes
-  sudo_user: git
+  become_user: git
   command: echo yes | bundle exec rake gitlab:setup RAILS_ENV=production
   args:
     chdir: /home/git/gitlab
@@ -169,7 +169,7 @@
 
 - name: compile assets
   become: yes
-  sudo_user: git
+  become_user: git
   command: bundle exec rake assets:precompile RAILS_ENV=production
   args:
     chdir: /home/git/gitlab