refactor: minor.

bin/cli

@@ -459,13 +459,13 @@ CLI.prototype.handleWallet = co(function* handleWallet() {
       this.log('  $ send [address] [value]: Send transaction.');
       this.log('  $ mktx [address] [value]: Create transaction.');
       this.log('  $ sign [tx-hex]: Sign transaction.');
-      this.log('  $ zap --age [age]: Zap pending wallet TXs.');
+      this.log('  $ zap [age?]: Zap pending wallet TXs.');
       this.log('  $ tx [hash]: View transaction details.');
       this.log('  $ view [tx-hex]: Parse and view transaction.');
       this.log('  $ import [wif|hex]: Import private or public key.');
       this.log('  $ watch [address]: Import an address.');
       this.log('  $ lock: Lock wallet.');
-      this.log('  $ unlock [passphrase] [timeout]: Unlock wallet.');
+      this.log('  $ unlock [passphrase] [timeout?]: Unlock wallet.');
       this.log('Other Options:');
       this.log('  --passphrase [passphrase]: For signing and account creation.');
       this.log('  --account [account-name]: Account name.');

lib/mempool/mempool.js

@@ -1216,19 +1216,11 @@ Mempool.prototype.storeOrphan = function storeOrphan(tx) {
       this.rejects.add(tx.hash());
       return;
     }
-  }
-
-  hash = tx.hash('hex');
-
-  for (i = 0; i < tx.inputs.length; i++) {
-    input = tx.inputs[i];
-
-    if (input.coin)
-      continue;
 
     missing[input.prevout.hash] = true;
   }
 
+  hash = tx.hash('hex');
   missing = Object.keys(missing);
 
   assert(missing.length > 0);

lib/wallet/txdb.js

@@ -1627,10 +1627,10 @@ TXDB.prototype.getCoins = function getCoins(account) {
       var hash = parts[0];
       var index = parts[1];
       var coin = Coin.fromRaw(value);
+      var ckey = hash + index;
       coin.hash = hash;
       coin.index = index;
-      key = hash + index;
-      self.coinCache.set(key, value);
+      self.coinCache.set(ckey, value);
       return coin;
     }
   });