Normalize a few more name references
diff --git a/include/polarssl/pkcs11.h b/include/polarssl/pkcs11.h
index 18c3370..1d64f0c 100644
--- a/include/polarssl/pkcs11.h
+++ b/include/polarssl/pkcs11.h
@@ -117,7 +117,7 @@
*
* \param ctx PKCS #11 context
* \param mode must be RSA_PRIVATE, for compatibility with rsa.c's signature
- * \param md_alg a POLARSSL_MD_* (use POLARSSL_MD_NONE for signing raw data)
+ * \param md_alg a POLARSSL_MD_XXX (use POLARSSL_MD_NONE for signing raw data)
* \param hashlen message digest length (for POLARSSL_MD_NONE only)
* \param hash buffer holding the message digest
* \param sig buffer that will hold the ciphertext