From ab9514983bfcc4a0e6a035010f785057f9072a13 Mon Sep 17 00:00:00 2001
From: Steven Roose <steven@stevenroose.org>
Date: Fri, 23 Oct 2020 17:28:22 +0100
Subject: [PATCH] Add explanation to witness program version assertion

---
 src/blockdata/script.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/blockdata/script.rs b/src/blockdata/script.rs
index 54caed7b..2bdc40bd 100644
--- a/src/blockdata/script.rs
+++ b/src/blockdata/script.rs
@@ -252,7 +252,7 @@ impl Script {
     /// Generates P2WSH-type of scriptPubkey with a given hash of the redeem script
     pub fn new_witness_program(ver: ::bech32::u5, program: &[u8]) -> Script {
         let mut verop = ver.to_u8();
-        assert!(verop <= 16);
+        assert!(verop <= 16, "incorrect witness version provided: {}", verop);
         if verop > 0 {
             verop = 0x50 + verop;
         }