Fix erroneous variables from 85bc9fc

Author: narfbg

system/database/drivers/mysql/mysql_driver.php

@@ -153,7 +153,7 @@ public function db_connect($persistent = FALSE)
 			{
 				log_message('error', "Database: Unable to set the configured connection charset ('{$this->char_set}').");
 				$this->close();
-				return ($this->db->debug) ? $this->display_error('db_unable_to_set_charset', $charset) : FALSE;
+				return ($this->db->debug) ? $this->display_error('db_unable_to_set_charset', $this->char_set) : FALSE;
 			}
 
 			if ($this->stricton)

system/database/drivers/mysqli/mysqli_driver.php

@@ -177,7 +177,7 @@ public function db_connect($persistent = FALSE)
 			{
 				log_message('error', "Database: Unable to set the configured connection charset ('{$this->char_set}').");
 				$mysqli->close();
-				return ($this->db->db_debug) ? $this->display_error('db_unable_to_set_charset', $charset) : FALSE;
+				return ($this->db->db_debug) ? $this->display_error('db_unable_to_set_charset', $this->char_set) : FALSE;
 			}
 
 			return $mysqli;

system/database/drivers/postgre/postgre_driver.php

@@ -163,11 +163,11 @@ public function db_connect($persistent = FALSE)
 				return FALSE;
 			}
 
-			if (pg_set_client_encoding($this->conn_id, $charset) !== 0)
+			if (pg_set_client_encoding($this->conn_id, $this->char_set) !== 0)
 			{
 				log_message('error', "Database: Unable to set the configured connection charset ('{$this->char_set}').");
 				pg_close($this->conn_id);
-				return ($this->db->db_debug) ? $this->display_error('db_unable_to_set_charset', $charset) : FALSE;
+				return ($this->db->db_debug) ? $this->display_error('db_unable_to_set_charset', $this->char_set) : FALSE;
 			}
 
 			empty($this->schema) OR $this->simple_query('SET search_path TO '.$this->schema.',public');