message: fix(Node.jsExample): Correct error with unknown file type write attempt
  The error now contains a traceback that starts with `Error: Could not
  find IO for: [...]`
diff: {
  "name": "itk-convert",
  - "version": "1.3.0",
  + "version": "1.3.1",
  "description": "Convert image or mesh files from one format to another.",
  "bin": {
  "itk-convert": "./src/itk-convert.js"
  "homepage": "https://github.com/InsightSoftwareConsortium/itk-js#readme",
  "dependencies": {
  "commander": "^2.14.1",
  - "itk": "^12.3.0"
  + "itk": "^13.1.4"
  }
  }
  