fix comments - use correct indexes for input descriptions

Author: dgpv

qa/rpc-tests/confidential_transactions.py

@@ -402,8 +402,8 @@ def run_test(self):
         btx.wit.vtxoutwit.append(CTxOutWitness())
 
         # Input 0 is already blinded
-        # Input 2 is our new asset
-        # Input 3 is fee that we added above
+        # Input 1 is our new asset
+        # Input 2 is fee that we added above
 
         # Blind with wrong order of assetcommitments - such transaction should be rejected
         blindtx = self.nodes[0].blindrawtransaction(