Moves code out of the try/catch blocks in the connect() methods.

That code wouldn't throw a PDOException, so having it in the
try/catch block is pointless. Moving it out makes it easier to
read.

lib/Cake/Model/Datasource/Database/Mysql.php

@@ -136,20 +136,24 @@ class Mysql extends DboSource {
 	public function connect() {
 		$config = $this->config;
 		$this->connected = false;
-		try {
+
 		$flags = array(
 			PDO::ATTR_PERSISTENT => $config['persistent'],
 			PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true,
 			PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
 		);
+
 		if (!empty($config['encoding'])) {
 			$flags[PDO::MYSQL_ATTR_INIT_COMMAND] = 'SET NAMES ' . $config['encoding'];
 		}
+
 		if (empty($config['unix_socket'])) {
 			$dsn = "mysql:host={$config['host']};port={$config['port']};dbname={$config['database']}";
 		} else {
 			$dsn = "mysql:unix_socket={$config['unix_socket']};dbname={$config['database']}";
 		}
+
+		try {
 			$this->_connection = new PDO(
 				$dsn,
 				$config['login'],

lib/Cake/Model/Datasource/Database/Postgres.php

@@ -110,11 +110,13 @@ class Postgres extends DboSource {
 	public function connect() {
 		$config = $this->config;
 		$this->connected = false;
-		try {
+
 		$flags = array(
 			PDO::ATTR_PERSISTENT => $config['persistent'],
 			PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
 		);
+
+		try {
 			$this->_connection = new PDO(
 				"pgsql:host={$config['host']};port={$config['port']};dbname={$config['database']}",
 				$config['login'],

lib/Cake/Model/Datasource/Database/Sqlserver.php

@@ -117,14 +117,17 @@ class Sqlserver extends DboSource {
 	public function connect() {
 		$config = $this->config;
 		$this->connected = false;
-		try {
+
 		$flags = array(
 			PDO::ATTR_PERSISTENT => $config['persistent'],
 			PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
 		);
+
 		if (!empty($config['encoding'])) {
 			$flags[PDO::SQLSRV_ATTR_ENCODING] = $config['encoding'];
 		}
+
+		try {
 			$this->_connection = new PDO(
 				"sqlsrv:server={$config['host']};Database={$config['database']}",
 				$config['login'],