Listing secret-id accessors appears to require case sensitive role name.

[melbit-michaelw]

Listing secret-id accessors appears to require case sensitive role name.

If the approle has been created with some uppercase letters, attempting to display the secret-id accessors fails until the exact same case is used.

Environment:

• Vault Version: Vault v0.9.0 ('bdac1854478538052ba5b7ec9a9ec688d35a3335')
• Operating System/Architecture: CentOS 7

Vault Config File:

api_addr = "https://Vault-address:443"

storage "dynamodb" {
ha_enabled = "true"
region = "ap-southeast-2"
table = "vault-poc"
}

listener "tcp" {
address = "0.0.0.0:8200"
tls_disable = 1
}

Startup Log Output:
N/a

Expected Behavior:

The following command should return the list of secret-id accessors for the 779693_vaultASG role, and should be identical in output to the second command (which actually works):

vault list /auth/approle/role/779693_vaultasg/secret-id
Keys
----
2466aa22-239b-ee67-712d-f5ac174c45e7
251dfc70-5a6e-7061-34b1-ff4b2dca04f6

vault list /auth/approle/role/779693_vaultASG/secret-id
Keys
----
2466aa22-239b-ee67-712d-f5ac174c45e7
251dfc70-5a6e-7061-34b1-ff4b2dca04f6

Actual Behavior:

vault list /auth/approle/role/779693_vaultasg/secret-id
No value found at auth/approle/role/779693_vaultasg/secret-id/
vault list /auth/approle/role/779693_vaultASG/secret-id
Keys
----
2466aa22-239b-ee67-712d-f5ac174c45e7
251dfc70-5a6e-7061-34b1-ff4b2dca04f6

Steps to Reproduce:

1. Create an approle role-name with mixed case.
2. Create some secret-id's associated with that role.
3. Attempt to list the secret-id-accessors.

Important Factoids:

References: