[1.3 PROPOSAL] call prctl(PR_SET_DUMPABLE)

[Jeff Trawick]

configure-time checks would used to check for availability (certain 
Linux only); the syscall would be made in the same situations as 2.x (if 
CoredumpDirectory has been set and we're starting as root)

no patch yet, just wondering if anybody objects for some reason and/or 
there is a chance of picking up some +1s provided that the patch is 
reasonable