bug 264881 removes extra separator. r/sr=mscott

mailnews/base/prefs/resources/content/am-addressingOverlay.xul

@@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+ <?xml version="1.0"?>
 
 <!-- ***** BEGIN LICENSE BLOCK *****
    - Version: MPL 1.1/GPL 2.0/LGPL 2.1
@@ -59,8 +59,7 @@
     <checkbox hidden="true" wsm_persist="true" id="identity.attachSignature"
           pref="true" preftype="bool" prefattribute="value"
           prefstring="mail.identity.%identitykey%.attach_signature"/>
-  
+
-    <separator class="thin"/>
     <groupbox>
       <caption label="&compositionGroupTitle.label;"/>
       <hbox align="center">