ssa_signal_handler.c: Changed commented out style in ssa_set_ssa_signal_handler

Signed-off-by: Hal Rosenstock <hal@mellanox.com>
ssa_path_record.c: In ssa_pr_compute_half_world, use DB_EPOCH_INVALID

rather than 0 in ssa_prdb_create call

Pointed-out-by: Sasha Kotchubievsky <sashakot@mellanox.com>

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