Bug 940116 - fix tabview button tooltip for Australis, r=jaws

browser/base/content/browser.xul

@@ -999,7 +999,7 @@
       <toolbarbutton id="tabview-button" class="toolbarbutton-1 chromeclass-toolbar-additional"
                      label="&tabGroupsButton.label;"
                      command="Browser:ToggleTabView"
-                     tooltiptext="&tabGroupsButton.tooltip;"
+                     tooltip="dynamic-shortcut-tooltip"
                      observes="tabviewGroupsNumber"/>
     </toolbarpalette>
   </toolbox>

browser/locales/en-US/chrome/browser/browser.dtd

@@ -175,7 +175,6 @@ These should match what Safari and other Apple applications use on OS X Lion. --
 <!ENTITY homeButton.label             "Home">
 
 <!ENTITY tabGroupsButton.label        "Tab Groups">
-<!ENTITY tabGroupsButton.tooltip      "Group your tabs">
 
 <!ENTITY bookmarksButton.label          "Bookmarks">
 <!ENTITY bookmarksCmd.commandkey "b">