bug#3314: 23.0.93; Emacs manual, node RegPos

Drew Adams wrote:
>> The reason for abbreviating some node names is to prevent the node's
>> first line (in the Info file) from wrapping in an ugly way.
> 
> Not a good solution, IMO.
> 
> Even if no good solution for the wrapping problem could be found, it is more
> important that nodes have helpful names than that wrapping be avoided.

Determine how many characters can be displayed, truncate the node name 
accordingly, and add the help-echo text property with the full node name.

-- 
Kevin Rodgers
Denver, Colorado, USA