Misc refactoring of Buffer#concat()

lib/buffer.js

@@ -6,17 +6,17 @@
  */
 
 /**
- * Concatenate `this` Buffer with `buf`.
+ * Concatenate `this` Buffer with `other`.
  *
- * @param {Buffer} buf
+ * @param {Buffer} other
  * @return {Buffer}
  * @api public
  */
 
-Buffer.prototype.concat = function(buf) {
+Buffer.prototype.concat = function(other) {
   var len = this.length
-    , tmp = new Buffer(len + buf.length);
-  this.copy(tmp, 0, 0);
-  buf.copy(tmp, len, 0);
-  return tmp;
+    , buf = new Buffer(len + other.length);
+  this.copy(buf, 0, 0);
+  other.copy(buf, len, 0);
+  return buf;
 };