fix output-curl-string for 'vault kv patch' (#6848)
fix output-curl-string for 'vault kv patch' (#6848)

* fix output-curl-string for 'vault-kv-patch'

* improve comments

hashicorp/vault,hartsock/vault,kingland/vault,rnaveiras/vault,rnaveiras/vault,hashicorp/vault,joelthompson/vault,hashicorp/vault,hashicorp/vault,joelthompson/vault,hartsock/vault,quixoten/vault,hashicorp/vault,hartsock/vault,joelthompson/vault,hartsock/vault,rnaveiras/vault,kingland/vault,quixoten/vault,kingland/vault,kingland/vault,quixoten/vault,quixoten/vault,kingland/vault,joelthompson/vault,rnaveiras/vault,rnaveiras/vault,hartsock/vault,hashicorp/vault