Wrong error message "API access denied"

[TheGoldenEye]

Expected behavior

If the API is not open for access, any reqests should be answered with a response like that:

{
message: "API access denied",
errors: [...]
}

Actual behavior

The response in still in old 0.9.x style

{
success: false,
error: "API access denied"
}

Steps to reproduce

Try to access a closed API

Which version(s) does this affect? (Environment, OS, etc...)

Lisk core 1.1.1