change array to hash in linux network plugin arp (ohai-31)
change array to hash in linux network plugin arp (ohai-31)

btm/ohai,thommay/ohai,numericillustration/ohai,tas50/ohai-1,criteo-forks/ohai,zshuo/ohai,cmluciano/ohai,juliandunn/ohai,adamleff/ohai,shtzr840329/ohai,shtzr840329/ohai,bougyman/ohai,chef/ohai,higanworks/ohai,sh9189/ohai,MSOpenTech/ohai,jseely/ohai,glennmatthews/ohai,glennmatthews/ohai,Juniper/ohai,Fodoj/ohai,phreakocious/ohai,dreamnite/ohai,http-418/ohai,Juniper/ohai,btm/ohai,zuazo-forks/ohai,nathwill/ohai,mattray/ohai,davide125/ohai,375gnu/ohai,375gnu/ohai,criteo-forks/ohai,zshuo/ohai,dreamnite/ohai,broadinstitute/ohai,jaymzh/ohai,nathwill/ohai,chef/ohai,acaiafa/ohai,jseely/ohai,bougyman/ohai,ktheory/ohai,juliandunn/ohai,n-marton/ohai,johnbellone/ohai,cmluciano/ohai,http-418/ohai,MSOpenTech/ohai,phreakocious/ohai,johnbellone/ohai,tas50/ohai-1,mattray/ohai,n-marton/ohai,jbfavre/ohai,jbfavre/ohai,numericillustration/ohai,sh9189/ohai,joyent/ohai,adamleff/ohai,higanworks/ohai,broadinstitute/ohai,davide125/ohai,acaiafa/ohai,jaymzh/ohai,Fodoj/ohai