openssl

test/evp_test.c: avoid resource leak in digest_test_run()

srtpkdf.c: avoid ctx NULL dereference kdf_srtpkdf_set_ctx_params()

crypto/bio/bf_buff.c: drop extraneous ctx NULL check in buffer_ctrl()

Update doc/man3/OPENSSL_init_crypto.pod

Fix documentation for OPENSSL_cleanup in pod files