updating info in help text: File->Import --> Tools->Import, bug=142111

suite/locales/en-US/chrome/common/help/mail_help.xhtml

@@ -1132,7 +1132,7 @@ Mozilla
 
 <p>To import an address book into Mozilla, begin from the Mail window:</p>
 <ol>
-  <li> Open the File menu, and choose Import. You see the Mozilla Mail Import Wizard.<br>
+  <li> Open the Tools menu, and choose Import. You see the Mozilla Mail Import Wizard.<br>
   </li>
   <li>Follow the instructions to import address books.</li>
   <p><strong>Tip</strong>: Communicator address book files (pab.na2) are stored in your user profile directory (for example, C:\Program Files\Mozilla\Users, where \Users contains the user profiles directories).</p>