default traceroute methods changed in case of root to save time
default traceroute methods changed in case of root to save time

rpanah/centinel,JASONews/centinel,iclab/centinel,iclab/centinel,rpanah/centinel,rpanah/centinel,lianke123321/centinel,lianke123321/centinel,ben-jones/centinel,lianke123321/centinel,iclab/centinel,Ashish1805/centinel