Fix incorrect file path in Token Helper doc (#4499)
Fix incorrect file path in Token Helper doc (#4499)

Vault stores the token in `~/.vault-token` and not `~/.vault_token`.
kingland/vault,joelthompson/vault,hashicorp/vault,quixoten/vault,rnaveiras/vault,Aloomaio/vault,hashicorp/vault,quixoten/vault,quixoten/vault,joelthompson/vault,Aloomaio/vault,hashicorp/vault,rnaveiras/vault,mgk/vault,joelthompson/vault,hashicorp/vault,hartsock/vault,mgk/vault,rnaveiras/vault,mgk/vault,rnaveiras/vault,hartsock/vault,rnaveiras/vault,kingland/vault,kingland/vault,kingland/vault,kingland/vault,quixoten/vault,hartsock/vault,Aloomaio/vault,hashicorp/vault,hartsock/vault,hartsock/vault,Aloomaio/vault,hashicorp/vault,mgk/vault,joelthompson/vault