Update ecdsa.h
Minor changes based on review comments
diff --git a/include/mbedtls/ecdsa.h b/include/mbedtls/ecdsa.h
index 99c6d2e..806c417 100644
--- a/include/mbedtls/ecdsa.h
+++ b/include/mbedtls/ecdsa.h
@@ -121,7 +121,7 @@
* \param md_alg The MD algorithm used to hash the message.
*
* \return \c 0 on success.
- * \return or an \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX
+ * \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX
* error code on failure.
*/
int mbedtls_ecdsa_sign_det( mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s,
@@ -149,7 +149,8 @@
* \param s The second integer of the signature.
*
* \return \c 0 on success.
- * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if signature is invalid.
+ * \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if the signature
+ * is invalid.
* \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_MPI_XXX
* error code on failure for any other reason.
*/
@@ -240,7 +241,7 @@
* \deprecated Superseded by mbedtls_ecdsa_write_signature() in 2.0.0
*
* \param ctx The ECDSA context.
- * \param hash The Message hash.
+ * \param hash The message hash.
* \param hlen The length of the hash.
* \param sig The buffer that holds the signature.
* \param slen The length of the signature written.