doc: Pick better named args for MutableTransactionSignatureCreator

Argument names of "nInIn" are not helpful.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/psbt.cpp b/src/psbt.cpp
index 5445bc8aa1..b3d8e052bc 100644
--- a/src/psbt.cpp
+++ b/src/psbt.cpp
@@ -223,7 +223,7 @@ void UpdatePSBTOutput(const SigningProvider& provider, PartiallySignedTransactio
     // Construct a would-be spend of this output, to update sigdata with.
     // Note that ProduceSignature is used to fill in metadata (not actual signatures),
     // so provider does not need to provide any private keys (it can be a HidingSigningProvider).
-    MutableTransactionSignatureCreator creator(&tx, /* index */ 0, out.nValue, SIGHASH_ALL);
+    MutableTransactionSignatureCreator creator(&tx, /*input_idx=*/0, out.nValue, SIGHASH_ALL);
     ProduceSignature(provider, creator, out.scriptPubKey, sigdata);
 
     // Put redeem_script, witness_script, key paths, into PSBTOutput.