Cleanup of stray spaces and tabs
diff --git a/user_guide/general/creating_libraries.html b/user_guide/general/creating_libraries.html
index 0b4d642..3f0e32c 100644
--- a/user_guide/general/creating_libraries.html
+++ b/user_guide/general/creating_libraries.html
@@ -200,7 +200,7 @@
 <kbd>This is very important.</kbd> Assigning by reference allows you to use the original CodeIgniter object rather than creating a copy of it.
 <br /><br />
 <kbd>Also, please note:</kbd> If you are running PHP 4 it's usually best to avoid calling <dfn>get_instance()</dfn>
-from within your class constructors.  PHP 4 has trouble referencing the CI super object within application constructors 
+from within your class constructors.  PHP 4 has trouble referencing the CI super object within application constructors
 since objects do not exist until the class is fully instantiated.</p>