minor.

lib/bcoin/chain.js

@@ -1303,13 +1303,13 @@ Chain.prototype.resetTime = function resetTime(ts, callback, force) {
 };
 
 /**
- * Wait for the chain to flush (finish processing
+ * Wait for the chain to drain (finish processing
  * all of the blocks in its queue).
  * @param {Function} callback
  */
 
-Chain.prototype.onFlush = function onFlush(callback) {
-  return this.locker.onFlush(callback);
+Chain.prototype.onDrain = function onDrain(callback) {
+  return this.locker.onDrain(callback);
 };
 
 /**

lib/bcoin/locker.js

@@ -96,7 +96,7 @@ Locker.prototype.lock = function lock(func, args, force) {
 
     if (self.add && func === self.add) {
       if (self.pending.length === 0)
-        self.emit('flush');
+        self.emit('drain');
     }
 
     if (self.jobs.length === 0)
@@ -149,19 +149,19 @@ Locker.prototype.purgePending = function purgePending() {
   });
 
   if (total !== 0)
-    this.emit('flush');
+    this.emit('drain');
 };
 
 /**
- * Wait for a flush (empty queue).
+ * Wait for a drain (empty queue).
  * @param {Function} callback
  */
 
-Locker.prototype.onFlush = function onFlush(callback) {
+Locker.prototype.onDrain = function onDrain(callback) {
   if (this.pending.length === 0)
     return callback();
 
-  this.once('flush', callback);
+  this.once('drain', callback);
 };
 
 /*

lib/bcoin/miner.js

@@ -54,9 +54,7 @@ function Miner(options) {
   this.running = false;
   this.timeout = null;
   this.loaded = false;
-
-  this.block = null;
-
+  this.attempt = null;
   this.workerPool = null;
 
   if (bcoin.useWorkers) {

lib/bcoin/pool.js

@@ -1650,7 +1650,7 @@ Pool.prototype.scheduleRequests = function scheduleRequests(peer) {
 
   this._scheduled = true;
 
-  this.chain.onFlush(function() {
+  this.chain.onDrain(function() {
     utils.nextTick(function() {
       self._sendRequests(peer);
       self._scheduled = false;

lib/bcoin/script.js

@@ -3825,7 +3825,6 @@ Script.verifyProgram = function verifyProgram(witness, output, flags, tx, i) {
       throw new ScriptError('WITNESS_PROGRAM_WRONG_LENGTH');
     }
   } else {
-    bcoin.debug('Unknown witness program version: %s', program.version);
     // Anyone can spend (we can return true here
     // if we want to always relay these transactions).
     // Otherwise, if we want to act like an "old"

lib/bcoin/workers.js

@@ -557,10 +557,7 @@ Master.prototype.debug = function debug() {
 
   args = Array.prototype.slice.call(arguments);
 
-  msg = typeof args[0] !== 'object'
-    ? utils.format(args, false)
-    : args[0];
-
+  msg = utils.format(args, false);
   msg = utils.format(['Worker %d: %s', this.id, msg], false);
 
   if (bcoin.isBrowser) {