Fix typos in doxygen commands in new bignum modules
Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
diff --git a/library/bignum_core.h b/library/bignum_core.h
index 44d5c5a..4fb8f65 100644
--- a/library/bignum_core.h
+++ b/library/bignum_core.h
@@ -222,7 +222,7 @@
* most significant zero bytes in the input).
*
* \param[out] X The address of the MPI.
- * May only be #NULL if \X_limbs is 0 and \p input_length
+ * May only be #NULL if \p X_limbs is 0 and \p input_length
* is 0.
* \param X_limbs The number of limbs of \p X.
* \param[in] input The input buffer to import from.