Run malloc0test with all possible malloc options.
Use arc4random_buf() when requesting more than a single word of outputUse arc4random_uniform() when the desired random number upper boundis not a power of twook deraadt@ millert@
Unbreak malloc0test for use with mmap malloc which allocates objectsin a non-contiguous manner. ok art@
EOL at end
various cleanups; david says results are same
move malloc0test.c to new subdir.ok tdeval@ millert@