Properly define sodium_crypto_aead_xchacha20poly1305_ietf_keygen()
Properly define sodium_crypto_aead_xchacha20poly1305_ietf_keygen()

paragonie/libsodium-php,paragonie/libsodium-php,jedisct1/libsodium-php,jedisct1/libsodium-php,paragonie/libsodium-php,jedisct1/libsodium-php