Use shuf instead of $RANDOM everywhere.
Use shuf instead of $RANDOM everywhere.

$RANDOM can cause collisions but shuf uses /dev/urandom so it ought to cause
fewer.

PiperOrigin-RevId: 298786344

google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor