fix the help line given for generating the env file
fix the help line given for generating the env file

dneiter/exabgp,benagricola/exabgp,PowerDNS/exabgp,lochiiconnectivity/exabgp,lochiiconnectivity/exabgp,fugitifduck/exabgp,earies/exabgp,blablacar/exabgp,lochiiconnectivity/exabgp,chrisy/exabgp,earies/exabgp,fugitifduck/exabgp,fugitifduck/exabgp,benagricola/exabgp,chrisy/exabgp,blablacar/exabgp,earies/exabgp,PowerDNS/exabgp,blablacar/exabgp,chrisy/exabgp,dneiter/exabgp,benagricola/exabgp,dneiter/exabgp,PowerDNS/exabgp