PR geerlingguy#495: Whitespace issue.

Author: geerlingguy

tasks/replication.yml

@@ -15,7 +15,7 @@
 - name: Check slave replication status.
   mysql_replication:
     mode: getreplica
-    login_user: "{{ mysql_root_username}}"
+    login_user: "{{ mysql_root_username }}"
     login_password: "{{ mysql_root_password }}"
   ignore_errors: true
   register: slave