backed out 648b42a75739, which was a NON-trivial whitespace commit.  It broke the Typography class's string replacements, for instance
diff --git a/system/helpers/text_helper.php b/system/helpers/text_helper.php
index 7d62125..33d7fa2 100644
--- a/system/helpers/text_helper.php
+++ b/system/helpers/text_helper.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
  *
@@ -63,7 +63,7 @@
 /**
  * Character Limiter
  *
- * Limits the string based on the character count. Preserves complete words
+ * Limits the string based on the character count.  Preserves complete words
  * so the character count may not be exactly as specified.
  *
  * @access	public
@@ -133,7 +133,7 @@
 				*/
 				if (count($temp) == 1)
 				{
-					$out .= '&#'.array_shift($temp).';';
+					$out  .= '&#'.array_shift($temp).';';
 					$count = 1;
 				}
 
@@ -389,7 +389,7 @@
 /**
  * Word Wrap
  *
- * Wraps text at the specified character. Maintains the integrity of words.
+ * Wraps text at the specified character.  Maintains the integrity of words.
  * Anything placed between {unwrap}{/unwrap} will not be word wrapped, nor
  * will URLs.
  *
@@ -429,7 +429,7 @@
 
 		// Use PHP's native function to do the initial wordwrap.
 		// We set the cut flag to FALSE so that any individual words that are
-		// too long get left alone. In the next step we'll deal with them.
+		// too long get left alone.  In the next step we'll deal with them.
 		$str = wordwrap($str, $charlim, "\n", FALSE);
 
 		// Split the string into individual lines of text and cycle through them