bootstrap: do not ignore write_file return value
bootstrap: do not ignore write_file return value

sile/rebar3,GabrielNicolasAvellaneda/rebar,lpgauth/rebar,bsmr-erlang/rebar,vladdu/rebar3,djnym/rebar3,oubiwann/rebar,K2InformaticsGmbH/rebar,lrascao/rebar,wcy123/rebar,lpgauth/rebar,linearregression/rebar3,erlang/rebar3,dcarastan/rebar,shkumagai/rebar,csyangchen/rebar,oubiwann/rebar,surik/rebar3,paulo-ferraz-oliveira/rebar,jacktang/rebar,deadok22/rebar,apache/couchdb-rebar,jacktang/rebar,sile/rebar3,syl20bnr/rebar,RubberCthulhu/rebar,project-fifo/rebar3,fauxsoup/rebar3,beni55/rebar,bsmr-erlang/rebar,norton/rebar,walrusVision/rebar3,paulo-ferraz-oliveira/rebar,scatterbrain/rebar,platinumthinker/rebar,evnix/rebar,thomasbhatia/rebar,K2InformaticsGmbH/rebar,fabiankrol/rebar3,macintux/rebar,syl20bnr/rebar,lrascao/rebar,kellymclaughlin/rebar3,evnix/rebar,lpgauth/rebar,norton/rebar3,GabrielNicolasAvellaneda/rebar,rebar/rebar,matwey/rebar,jacktang/rebar,surik/rebar3,macintux/rebar,bsmr-erlang/rebar,SiDen/rebar,CMoH/rebar,K2InformaticsGmbH/rebar,lrascao/rebar,zugolosian/rebar3,paulo-ferraz-oliveira/rebar,norton/rebar,apache/couchdb-rebar,deadok22/rebar,GabrielNicolasAvellaneda/rebar,beni55/rebar-1,rebar/rebar3,heroku/rebar,csyangchen/rebar,rebar/rebar3,scatterbrain/rebar,dcarastan/rebar,rebar/rebar,RubberCthulhu/rebar,rebar/rebar,tsloughter/rebar3,lrascao/rebar,syl20bnr/rebar,linearregression/rebar3,zugolosian/rebar3,choptastic/rebar,lrascao/rebar,choptastic/rebar,wcy123/rebar,benoitc/rebar3,cloudant/couchdb-rebar,blt/rebar3,processone/rebar3,fabiankrol/rebar3,thomasbhatia/rebar,heroku/rebar,fauxsoup/rebar3,K2InformaticsGmbH/rebar,jbalint/rebar3,walrusVision/rebar3,norton/rebar,matwey/rebar,beni55/rebar,benoitc/rebar3,saleyn/rebar3,platinumthinker/rebar,jbalint/rebar3,matwey/rebar,oubiwann/rebar,fishcakez/rebar3,bsmr-erlang/rebar,platinumthinker/rebar,matwey/rebar,beni55/rebar-1,blt/rebar3,scatterbrain/rebar,cloudant/couchdb-rebar,cloudant/couchdb-rebar,processone/rebar3,matwey/rebar,shkumagai/rebar,SiDen/rebar,shkumagai/rebar,beni55/rebar,K2InformaticsGmbH/rebar,apache/couchdb-rebar,CMoH/rebar,CMoH/rebar,basho/rebar,lrascao/rebar3,dcarastan/rebar,choptastic/rebar,thomasbhatia/rebar,basho/rebar,evnix/rebar,csyangchen/rebar,project-fifo/rebar3,macintux/rebar,ferd/rebar3,SiDen/rebar,norton/rebar