use directories for structure

node_modules/clone-buffer/index.js

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+'use strict';
+
+var Buffer = require('buffer').Buffer;
+
+function hasFrom() {
+  // Node versions 5.x below 5.10 seem to have a `from` method
+  // However, it doesn't clone Buffers
+  // Luckily, it reports as `false` to hasOwnProperty
+  return (Buffer.hasOwnProperty('from') && typeof Buffer.from === 'function');
+}
+
+function cloneBuffer(buf) {
+  if (!Buffer.isBuffer(buf)) {
+    throw new Error('Can only clone Buffer.');
+  }
+
+  if (hasFrom()) {
+    return Buffer.from(buf);
+  }
+
+  var copy = new Buffer(buf.length);
+  buf.copy(copy);
+  return copy;
+}
+
+cloneBuffer.hasFrom = hasFrom;
+
+module.exports = cloneBuffer;