Updated docstring style
diff --git a/OpenSSL/crypto/x509.c b/OpenSSL/crypto/x509.c
index 9ee28e8..0754dec 100644
--- a/OpenSSL/crypto/x509.c
+++ b/OpenSSL/crypto/x509.c
@@ -523,9 +523,9 @@
static char crypto_X509_get_signature_algorithm_doc[] = "\n\
Retrieve the signature algorithm used in the certificate\n\
\n\
-Arguments: self - The X509 object\n\
- args - The Python argument tuple, should be empty\n\
-Returns: None\n\
+@return: A byte string giving the name of the signature algorithm used in\n\
+ the certificate.\n\
+@raise ValueError: If the signature algorithm is undefined.\n\
";
static PyObject *