rendering issues in IE can push the button to far right. Better to left-align...

rendering issues in IE can push the button to far right. Better to left-align this to avoid this problem in case it happens

core/src/main/resources/hudson/PluginManager/table.jelly

@@ -136,7 +136,7 @@ THE SOFTWARE.
         </table>
 
         <j:if test="${!empty(list)}">
-          <div style="float:right; margin-top:1em">
+          <div style="margin-top:1em">
             <f:submit value="${%Install}" />
           </div>
         </j:if>