wallet: cleanup COutput constructor

Author: achow101

src/wallet/spend.h

@@ -49,8 +49,15 @@ class COutput
     bool fSafe;
 
     COutput(const CWallet& wallet, const CWalletTx& wtx, int iIn, int nDepthIn, bool fSpendableIn, bool fSolvableIn, bool fSafeIn, bool use_max_sig_in = false)
+        : tx(&wtx),
+        i(iIn),
+        nDepth(nDepthIn),
+        nInputBytes(-1),
+        fSpendable(fSpendableIn),
+        fSolvable(fSolvableIn),
+        use_max_sig(use_max_sig_in),
+        fSafe(fSafeIn)
     {
-        tx = &wtx; i = iIn; nDepth = nDepthIn; fSpendable = fSpendableIn; fSolvable = fSolvableIn; fSafe = fSafeIn; nInputBytes = -1; use_max_sig = use_max_sig_in;
         // If known and signable by the given wallet, compute nInputBytes
         // Failure will keep this value -1
         if (fSpendable) {