postgresql::server: default username parameter to $user

Author: SimonHoenscheid

REFERENCE.md

@@ -1403,7 +1403,7 @@ Data type: `Optional[String[1]]`
 
 username of user running the postgres instance
 
-Default value: `undef`
+Default value: `$user`
 
 ### <a name="postgresql--server--contrib"></a>`postgresql::server::contrib`
 

manifests/server.pp

@@ -167,7 +167,7 @@
   Optional[String[1]]                                $locale                       = $postgresql::params::locale,
   Optional[String[1]]                                $lc_messages                  = undef,
   Optional[Boolean]                                  $data_checksums               = $postgresql::params::data_checksums,
-  Optional[String[1]]                                $username                     = undef,
+  Optional[String[1]]                                $username                     = $user,
   Optional[String[1]]                                $timezone                     = $postgresql::params::timezone,
 
   Boolean                                            $manage_pg_hba_conf           = $postgresql::params::manage_pg_hba_conf,