Add a not-exported tag to the Display implementation for RawHrp

RawHrp is already not-exported, so implementations for it should be
as well.

diff --git a/lightning-invoice/src/ser.rs b/lightning-invoice/src/ser.rs
index 6bc60d960ba437545f721d9437f765df36a108fe..8811926782348a263735b55824ea74fb65d662cb 100644 (file)
--- a/lightning-invoice/src/ser.rs
+++ b/lightning-invoice/src/ser.rs
@@ -123,6 +123,7 @@ impl Display for SignedRawInvoice {
        }
 }
 
+/// (C-not exported)
 impl Display for RawHrp {
        fn fmt(&self, f: &mut Formatter) -> Result<(), fmt::Error> {
                let amount = match self.raw_amount {