Init RUNNER_SCRIPT var in simplenode.runner
Init RUNNER_SCRIPT var in simplenode.runner

RUNNER_SCRIPT variable is not initialized in simplenode.runner and it's
referenced when calling sudo.

evnix/rebar,apache/couchdb-rebar,GabrielNicolasAvellaneda/rebar,zugolosian/rebar3,lrascao/rebar,RubberCthulhu/rebar,K2InformaticsGmbH/rebar,K2InformaticsGmbH/rebar,platinumthinker/rebar,sile/rebar3,bsmr-erlang/rebar,K2InformaticsGmbH/rebar,jacktang/rebar,scatterbrain/rebar,processone/rebar3,lrascao/rebar3,syl20bnr/rebar,dcarastan/rebar,SiDen/rebar,shkumagai/rebar,matwey/rebar,fishcakez/rebar3,choptastic/rebar,apache/couchdb-rebar,norton/rebar,CMoH/rebar,paulo-ferraz-oliveira/rebar,cloudant/couchdb-rebar,oubiwann/rebar,heroku/rebar,benoitc/rebar3,fabiankrol/rebar3,platinumthinker/rebar,lrascao/rebar,macintux/rebar,fauxsoup/rebar3,blt/rebar3,norton/rebar,lrascao/rebar,RubberCthulhu/rebar,bsmr-erlang/rebar,kellymclaughlin/rebar3,zugolosian/rebar3,shkumagai/rebar,lpgauth/rebar,SiDen/rebar,jbalint/rebar3,vladdu/rebar3,dcarastan/rebar,syl20bnr/rebar,csyangchen/rebar,matwey/rebar,scatterbrain/rebar,fabiankrol/rebar3,rebar/rebar3,matwey/rebar,csyangchen/rebar,linearregression/rebar3,fauxsoup/rebar3,oubiwann/rebar,processone/rebar3,paulo-ferraz-oliveira/rebar,norton/rebar,shkumagai/rebar,surik/rebar3,ferd/rebar3,lpgauth/rebar,paulo-ferraz-oliveira/rebar,blt/rebar3,oubiwann/rebar,matwey/rebar,CMoH/rebar,macintux/rebar,bsmr-erlang/rebar,beni55/rebar,choptastic/rebar,norton/rebar3,jacktang/rebar,rebar/rebar,csyangchen/rebar,project-fifo/rebar3,apache/couchdb-rebar,heroku/rebar,evnix/rebar,rebar/rebar,jacktang/rebar,rebar/rebar3,bsmr-erlang/rebar,tsloughter/rebar3,walrusVision/rebar3,surik/rebar3,K2InformaticsGmbH/rebar,scatterbrain/rebar,cloudant/couchdb-rebar,SiDen/rebar,erlang/rebar3,djnym/rebar3,choptastic/rebar,matwey/rebar,dcarastan/rebar,evnix/rebar,lpgauth/rebar,K2InformaticsGmbH/rebar,GabrielNicolasAvellaneda/rebar,CMoH/rebar,norton/rebar,lrascao/rebar,GabrielNicolasAvellaneda/rebar,walrusVision/rebar3,platinumthinker/rebar,beni55/rebar,lrascao/rebar,rebar/rebar,sile/rebar3,saleyn/rebar3,project-fifo/rebar3,benoitc/rebar3,syl20bnr/rebar,linearregression/rebar3,beni55/rebar,jbalint/rebar3,macintux/rebar,cloudant/couchdb-rebar