Update ecdsa.h
Merged change to MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH from other commit for merging, as requested (lines 282+283).
@@ -279,8 +279,8 @@ int mbedtls_ecdsa_write_signature_det( mbedtls_ecdsa_context *ctx,
*
* \return \c 0 on success.
* \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if signature is invalid.
- * \return #MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH if the signature is
- * valid but its actual length is less than \p siglen.
+ * \return #MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH if there is a valid
+ * signature in \p sig, but its length is less than \p siglen.
* \return An \c MBEDTLS_ERR_ECP_XXX or \c MBEDTLS_ERR_MPI_XXX
* error code on failure for any other reason.
*/
