MFC: 266171, 266174

Extend the size of the function or symbol that can be annotated.

Update the amount of data we can collect for hwpmc(4) by default
to work with modern processors and available memory.
MFC: 266166

Extend the size of the function or symbol that can be annotated.
MFC: 266209

Add a command line argument (-l) to end event collection after some
number of seconds.  The number of seconds may be a fraction.

Submitted by:	Julien Charbon <jcharbon@versign.com>
Relnotes:	yes