Fix references to incorrect variable name

Author: natefoo

README.md

@@ -77,11 +77,11 @@ Role Variables
 - `postgresql_pg_hba_local_ipv6`: If set to `false`, this will remove the `host ... ::1/128` entry from `pg_hba.conf`
   that is preconfigured by the PostgreSQL package.
 
-- `postgresql_pgdata_dir`: Only set this if you have changed the `$PGDATA` directory from the package default. Note this
+- `postgresql_pgdata`: Only set this if you have changed the `$PGDATA` directory from the package default. Note this
   does not configure PostgreSQL to actually use a different directory, you will need to do that yourself, it just allows
   the role to properly locate the directory.
 
-- `postgresql_conf_dir`: As with `postgresql_pgdata_dir` except for the configuration directory.
+- `postgresql_conf_dir`: As with `postgresql_pgdata` except for the configuration directory.
 
 ### Backups ###
 

tasks/main.yml

@@ -11,7 +11,7 @@
     postgresql_version: "{{ postgresql_default_version }}"
   when: ansible_os_family == "RedHat" and postgresql_version is not defined
 
-# Sets postgresql_pgdata_dir, postgresql_conf_dir
+# Sets postgresql_pgdata, postgresql_conf_dir
 - name: Set OS-specific variables
   include_vars: "{{ ansible_os_family | lower }}.yml"
 
@@ -25,7 +25,7 @@
     postgresql_conf_dir: "{{ postgresql_conf_dir_default }}"
   when: postgresql_conf_dir is not defined
 
-# Needs postgresql_pgdata_dir set
+# Needs postgresql_pgdata set
 - include_tasks: redhat.yml
   when: ansible_os_family == "RedHat"