ssa_path_record.c: In ssa_pr_compute_half_world, change parameter name

from p_prdb to pp_prdb so clear that it's pointer to pointer rather
than just pointer

Signed-off-by: Hal Rosenstock <hal@mellanox.com>
ssa_path_record.c: Cosmetic formatting change

Signed-off-by: Hal Rosenstock <hal@mellanox.com>