Merge pull request geerlingguy#385 from nkakouros-forks/mode

Allow mysql_mode to be set to the empty string

Author: geerlingguy

defaults/main.yml

@@ -41,7 +41,7 @@ mysql_port: "3306"
 mysql_bind_address: '0.0.0.0'
 mysql_skip_name_resolve: false
 mysql_datadir: /var/lib/mysql
-mysql_sql_mode: ''
+mysql_sql_mode: ~
 # The following variables have a default value depending on operating system.
 # mysql_pid_file: /var/run/mysqld/mysqld.pid
 # mysql_socket: /var/lib/mysql/mysql.sock

templates/my.cnf.j2

@@ -14,7 +14,7 @@ pid-file = {{ mysql_pid_file }}
 {% if mysql_skip_name_resolve %}
 skip-name-resolve
 {% endif %}
-{% if mysql_sql_mode %}
+{% if mysql_sql_mode is not none %}
 sql_mode = {{ mysql_sql_mode }}
 {% endif %}