Fix an SQLite3 pconnect() bug + other minor changes
diff --git a/system/database/drivers/sqlite/sqlite_driver.php b/system/database/drivers/sqlite/sqlite_driver.php
index d9820e1..f52b1ba 100644
--- a/system/database/drivers/sqlite/sqlite_driver.php
+++ b/system/database/drivers/sqlite/sqlite_driver.php
@@ -404,16 +404,16 @@
 	 */
 	protected function _limit($sql, $limit, $offset)
 	{
-		if ($offset === 0)
+		if ($offset == 0)
 		{
 			$offset = '';
 		}
 		else
 		{
-			$offset .= ", ";
+			$offset .= ', ';
 		}
 
-		return $sql."LIMIT ".$offset.$limit;
+		return $sql.'LIMIT '.$offset.$limit;
 	}
 
 	// --------------------------------------------------------------------