Comment 35 for bug 146918

@era:
> I note the inconsistent capitalization and use of passive / active voice etc.
> Perhaps we should seek a consensus on how these should be unified.

Maybe the Gnome HIG for application tooltips should be applied here as well?

Quoting 2.1.2 from http://library.gnome.org/devel/hig-book/stable/desktop-application-menu.html.en:
> Provide a tooltip for each Application menu item you add, following these guidelines:
> * Phrase the tooltip as an imperative verb, for example "design", "write" or "check".
> * Describe the most important tasks users can accomplish with your application.
> * While tooltips should not be verbose, they should be longer and more descriptive than the item's name.
> Examples:
> Character Map Insert special characters into documents
> Memprof Check your applications for memory leaks
> Same Gnome Arrange long chains of similarly-colored balls to eliminate them
> Gnome Batalla Naval Client Find and sink enemy ships in this networked version of Battleship