f - fix typo

Author: jkczyz

lightning/src/offers/invoice.rs

@@ -169,9 +169,9 @@ impl<'a> UnsignedInvoice<'a> {
 	where
 		F: FnOnce(&Message) -> Result<Signature, E>
 	{
-		// Use the invoice_request bytes instead of the invoice_reqeuest TLV stream as the latter
-		// may have contained unknown TLV records, which are not stored in `InvoiceRequestContents`
-		// or `RefundContents`.
+		// Use the invoice_request bytes instead of the invoice_request TLV stream as the latter may
+		// have contained unknown TLV records, which are not stored in `InvoiceRequestContents` or
+		// `RefundContents`.
 		let (_, _, _, invoice_tlv_stream) = self.invoice.as_tlv_stream();
 		let invoice_request_bytes = WithoutSignatures(self.invreq_bytes);
 		let unsigned_tlv_stream = (invoice_request_bytes, invoice_tlv_stream);