backed out 648b42a75739, which was a NON-trivial whitespace commit.  It broke the Typography class's string replacements, for instance
diff --git a/system/database/drivers/postgre/postgre_forge.php b/system/database/drivers/postgre/postgre_forge.php
index fbfaac8..91a1c68 100644
--- a/system/database/drivers/postgre/postgre_forge.php
+++ b/system/database/drivers/postgre/postgre_forge.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -128,14 +128,14 @@
 				}
 
 				// If this is an auto-incrementing primary key, use the serial data type instead
-				if (in_array($field, $primary_keys) && array_key_exists('AUTO_INCREMENT', $attributes)
+				if (in_array($field, $primary_keys) && array_key_exists('AUTO_INCREMENT', $attributes) 
 					&& $attributes['AUTO_INCREMENT'] === TRUE)
 				{
 					$sql .= ' SERIAL';
 				}
 				else
 				{
-					$sql .= ' '.$attributes['TYPE'];
+					$sql .=  ' '.$attributes['TYPE'];
 				}
 
 				// Modified to prevent constraints with integer data types
@@ -213,8 +213,8 @@
 	/**
 	 * Drop Table
 	 *
-	 * @access  private
-	 * @return  bool
+	 * @access    private
+	 * @return    bool
 	 */
 	function _drop_table($table)
 	{