backing out an accidental check in.

mailnews/base/search/resources/content/SearchDialog.xul

@@ -105,7 +105,7 @@ Rights Reserved.
        <vbox>
             <spring flex="1" />
             <button label="&openButton.label;" id="openButton" command="cmd_open" />
-            <menubutton class="push" id="fileMessageButton" label="&fileButton.label;"
+            <menubutton id="fileMessageButton" label="&fileButton.label;"
                         observes="file_message_button"
                         oncommand="MoveMessageInSearch(event.target)" 
                         datasources="rdf:msgaccountmanager rdf:mailnewsfolders"