Update ecp.h
Resolved last review comment
diff --git a/include/mbedtls/ecp.h b/include/mbedtls/ecp.h
index f7f57c0..e11cdf2 100644
--- a/include/mbedtls/ecp.h
+++ b/include/mbedtls/ecp.h
@@ -499,7 +499,8 @@
* \brief This function exports a point as a TLS ECPoint record.
*
* \param grp The ECP group used.
- * \param pt The point format to export to an \c MBEDTLS_ECP_PF_XXX constant.
+ * \param pt The point format to export to. The point format is an
+ * \c MBEDTLS_ECP_PF_XXX constant.
* \param format The export format.
* \param olen The length of the data written.
* \param buf The buffer to write to.