Remove spurious double comma in documentation

diff --git a/lightning-invoice/src/payment.rs b/lightning-invoice/src/payment.rs
index 14702986aaefad4868f287536cff5d36a4556b85..bf161dbbf0ebc34e78bf5309761621f4ad1662ee 100644 (file)
--- a/lightning-invoice/src/payment.rs
+++ b/lightning-invoice/src/payment.rs
@@ -108,7 +108,7 @@ where
 }
 
 /// Pays the given zero-value [`Invoice`] using the given amount and custom idempotency key,
-/// , retrying if needed based on [`Retry`].
+/// retrying if needed based on [`Retry`].
 ///
 /// Note that idempotency is only guaranteed as long as the payment is still pending. Once the
 /// payment completes or fails, no idempotency guarantees are made.