fixes geerlingguy#225 include ansible_managed in templates.

Modified   templates/my.cnf.j2
Modified   templates/root-my.cnf.j2
Modified   templates/user-my.cnf.j2

Author: Weselowski, Rene (rweselowski)

templates/my.cnf.j2

@@ -1,3 +1,5 @@
+# {{ ansible_managed }}
+
 [client]
 #password = your_password
 port = {{ mysql_port }}

templates/root-my.cnf.j2

@@ -1,3 +1,5 @@
+# {{ ansible_managed }}
+
 [client]
 user="{{ mysql_root_username }}"
 password="{{ mysql_root_password }}"

templates/user-my.cnf.j2

@@ -1,3 +1,5 @@
+# {{ ansible_managed }}
+
 [client]
 user="{{ mysql_user_name }}"
 password="{{ mysql_user_password }}"