Change implementation return type to match the definition.
Change implementation return type to match the definition.

* src/gpgme.c (gpgme_get_sub_protocol): Change return type to
gpgme_protocol_t.
--

Yet another enum/int mismatch.

Reported-by: Albert Chin.

gpg/gpgme,gpg/gpgme,gpg/gpgme,gpg/gpgme,gpg/gpgme,gpg/gpgme,gpg/gpgme