In C/C++, the
string is a shorthand notation for “begin a new line.” In the
prompt for toolbar buttons and menu entries, this string is used to separate
the status bar descriptions of the menu entries and the tooltips pop-up
prompt that appears when the mouse is held over a toolbar button for a
few seconds. The first line of the prompt is used for the status bar description,
and the second line is used for the tooltips description. The tooltips
description is only used with the toolbars, so there’s no reason to add this
for menu entries that will have no toolbar equivalents