allow to specify parallelism level in tools/execlog
allow to specify parallelism level in tools/execlog

hyz0906/syzkaller,lorenzo-stoakes/syzkaller,google/syzkaller,dotweiba/syzkaller,sploving/syzkaller,lorenzo-stoakes/syzkaller,xairy/syzkaller,hyz0906/syzkaller,google/syzkaller,hyz0906/syzkaller,zoulasc/syzkaller,google/syzkaller,dotweiba/syzkaller,xairy/syzkaller,zoulasc/syzkaller,zoulasc/syzkaller,google/syzkaller,dotweiba/syzkaller,dotweiba/syzkaller,sploving/syzkaller,xairy/syzkaller,zoulasc/syzkaller,google/syzkaller,xairy/syzkaller,xairy/syzkaller,google/syzkaller,sploving/syzkaller,lorenzo-stoakes/syzkaller,hyz0906/syzkaller,xairy/syzkaller,xairy/syzkaller,hyz0906/syzkaller,sploving/syzkaller,google/syzkaller