explorer: fix witness size computation

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "descriptor-wallet"
-version = "0.9.1"
+version = "0.9.2"
 license = "Apache-2.0"
 authors = ["Dr. Maxim Orlovsky <[email protected]>"]
 description = "Libraries and command line tool for building descriptor-based bitcoin wallets"
@@ -31,7 +31,7 @@ name = "btc-expl"
 required-features = ["cli", "compiler"]
 
 [dependencies]
-amplify = "3.13.0"
+amplify = "3.14.2"
 strict_encoding_crate = { package = "strict_encoding", version = "0.9.0", features = ["bitcoin", "derive"], optional = true }
 bitcoin = "0.29.2"
 bitcoin_scripts = "0.9.1"

src/bin/btc-expl.rs

@@ -129,6 +129,8 @@ impl Args {
 
         println!();
         for (vin, (prev_tx, txin)) in prev_txs.into_iter().zip(tx.input).enumerate() {
+            witness_size += txin.witness.iter().map(<[u8]>::len).sum::<usize>();
+
             let prevout = &prev_tx.output[txin.previous_output.vout as usize];
             println!(
                 "{} {} <- {}",
@@ -316,7 +318,6 @@ impl Args {
                 _ => {
                     println!("  witness stack:");
                     for el in txin.witness.iter() {
-                        witness_size += el.len();
                         println!("    - {}", el.to_hex());
                     }
                 }