updated pgstandby data directory that must be removed prior to standby setup.

tasks/main.yml

diff --git a/tasks/main.yml b/tasks/main.yml
index 68c1d90..cab461e 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -5,7 +5,7 @@
 
 - name: Remove Postgres data directory
   file:
-    path: '{{ apigee_installation_home }}/data/apigee-postgresql'
+    path: '{{ apigee_installation_home }}/data/apigee-postgresql/pgdata'
     state: absent
 
 - name: Postgres replication standby