Fix incorrect parameter name in mbedtls_mpi_core_add_if() doc comment
@@ -256,7 +256,7 @@ mbedtls_mpi_uint mbedtls_mpi_core_sub( mbedtls_mpi_uint *X,
* \param cond Condition bit dictating whether addition should
* happen or not. This must be \c 0 or \c 1.
*
- * \warning If \p assign is neither 0 nor 1, the result of this function
+ * \warning If \p cond is neither 0 nor 1, the result of this function
* is unspecified, and the resulting value in \p A might be
* neither its original value nor \p A + \p B.
*
