[Help-gnutls] Slight enum vs. `int' typo

[Ludovic Courtès]

Hi,

The last argument of `gnutls_psk_set_client_credentials ()' should have
type `gnutls_psk_key_flags' instead of `unsigned int' (hopefully the
size of both types is the same on C89-compliant platforms ;-)).  I
believe that last argument should also be renamed to `format' for
clarity.

Thanks,
Ludovic.