top: provides a new user 'message log' display ability <=== port of newlib 3901dcb9

top: provides a new user 'message log' display ability <=== port of newlib 3901dcb9

______________________________ original newlib message

Messages issued by top will be displayed for only 1.25
seconds. And while this length of time would appear to
be acceptable (given the absence of complaints), there
will be times when a specific message might be missed.

So, this commit offers users the opportunity to recall
up to 10 of the most recent messages that were issued.

[ we'll just exploit top's new bottom window feature ]

Signed-off-by: Jim Warner <james.warner@comcast.net>