mail : update exception message

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@2721 bf3deb0d-5f1a-0410-827f-c0cc1f45334c

mail.php

@@ -3,6 +3,7 @@
     @package domframework
     @author Dominique Fournier <dominique@fournier38.fr> */
 
+/** The class to create a complete email. Can read an email from a content */
 class mail
 {
 
@@ -1086,7 +1087,7 @@ class mail
     else
     {
       if (! array_key_exists ($sectionID, $this->sections))
-        throw new \Exception ("Wanted section not found in addHeader", 404);
+        throw new \Exception ("Wanted section not found in delHeader", 404);
       $sectionMainID = $sectionID;
     }
     $found = false;