message: use description when it's not undefined
diff: @@ -82,7 +82,9 @@ export class EnumDeduplicator extends TransformerViaPointer {
  // combine all the values into a single enum
  const mergedEnum = this.newObject(first.target, name, first.pointer);
  this.clone(mergedEnum, 'x-ms-metadata', first.pointer, first.value['x-ms-metadata']);
  + if (first.value.description) {
  this.clone(mergedEnum, 'description', first.pointer, first.value.description);
  + }
  this.clone(mergedEnum, 'x-ms-enum', first.pointer, first.value['x-ms-enum']);
  this.clone(mergedEnum, 'type', first.pointer, 'string');
  const newRef = `#/components/schemas/${name}`;
  