Properly parse envvars for bools (#4882)
Properly parse envvars for bools (#4882)

Fixes GH-4875
hartsock/vault,rnaveiras/vault,hartsock/vault,quixoten/vault,hartsock/vault,quixoten/vault,kingland/vault,kingland/vault,hashicorp/vault,rnaveiras/vault,joelthompson/vault,kingland/vault,hashicorp/vault,kingland/vault,hashicorp/vault,hashicorp/vault,rnaveiras/vault,quixoten/vault,hashicorp/vault,joelthompson/vault,joelthompson/vault,rnaveiras/vault,hartsock/vault,quixoten/vault,hartsock/vault,hashicorp/vault,rnaveiras/vault,kingland/vault,joelthompson/vault