Introduce GOTEST_FLAGS to conditionally add -v to go test
Introduce GOTEST_FLAGS to conditionally add -v to go test

Trivial change that makes it possible for developers to set an environment variable and change the output of `go test` to be detailed (i.e. `GOTEST_FLAGS=-v`).

leowmjw/consul,kingland/consul,sean-/consul,42wim/consul,mckennajones/consul,scalp42/consul,vamage/consul,calgaryscientific/consul,sean-/consul,Thib17/consul,Pivotal-Pierre-Delagrave/consul,sweeneyb/consul,zeroae/consul,calgaryscientific/consul,scalp42/consul,kylemcc/consul,kaskavalci/consul,sunadm/consul,zeroae/consul,42wim/consul,sweeneyb/consul,youhong316/consul,youhong316/consul,sunadm/consul,calgaryscientific/consul,dankraw/consul,rhyas/consul,lindenlab/consul,kylemcc/consul,kylemcc/consul,sean-/consul,pmalmgren/consul,pmalmgren/consul,samaitra/consul,rhyas/consul,sunadm/consul,sequenceiq/consul,i0rek/consul,hashicorp/consul,rhyas/consul,pmalmgren/consul,lindenlab/consul,sean-/consul,Thib17/consul,leowmjw/consul,dankraw/consul,jovandeginste/consul,mckennajones/consul,andygoalkeeper/consul,i0rek/consul,vamage/consul,zeroae/consul,tshak/consul,sweeneyb/consul,kaskavalci/consul,dankraw/consul,lindenlab/consul,andygoalkeeper/consul,kingland/consul,dankraw/consul,42wim/consul,mckennajones/consul,tshak/consul,Thib17/consul,rhyas/consul,hashicorp/consul,kingland/consul,sean-/consul,i0rek/consul,sweeneyb/consul,kaskavalci/consul,sunadm/consul,Thib17/consul,kingland/consul,mshean/consul,samaitra/consul,scalp42/consul,Thib17/consul,leowmjw/consul,hashicorp/consul,tugbabodrumlu/consul,mckennajones/consul,scalp42/consul,andygoalkeeper/consul,zeroae/consul,kaskavalci/consul,Pivotal-Pierre-Delagrave/consul,youhong316/consul,mshean/consul,sweeneyb/consul,jovandeginste/consul,Pivotal-Pierre-Delagrave/consul,calgaryscientific/consul,samaitra/consul,leowmjw/consul,jovandeginste/consul,zeroae/consul,sequenceiq/consul,Pivotal-Pierre-Delagrave/consul,samaitra/consul,sequenceiq/consul,42wim/consul,mshean/consul,youhong316/consul,tugbabodrumlu/consul,sequenceiq/consul,mckennajones/consul,jovandeginste/consul,calgaryscientific/consul,kingland/consul,i0rek/consul,pmalmgren/consul,kaskavalci/consul,jovandeginste/consul,tshak/consul,tugbabodrumlu/consul,sequenceiq/consul,i0rek/consul,rhyas/consul,Pivotal-Pierre-Delagrave/consul,andygoalkeeper/consul,dankraw/consul,andygoalkeeper/consul,vamage/consul,tshak/consul,pmalmgren/consul,vamage/consul,vamage/consul,tshak/consul,42wim/consul,youhong316/consul,samaitra/consul,tugbabodrumlu/consul,hashicorp/consul,kylemcc/consul,mshean/consul,kylemcc/consul,lindenlab/consul,sunadm/consul,tugbabodrumlu/consul,scalp42/consul,leowmjw/consul,lindenlab/consul,mshean/consul