message: build: use path.relative when printing filenaems
diff: const browserify = require('browserify');
  const bundleProcessor = require('./bundleProcessor');
  +const path = require('path');
  const config = {
  debug: true,
  @@ -14,7 +15,6 @@ const config = {
  const b = browserify(config);
  -const pwdRegex = new RegExp(`^${process.env.PWD}.`);
  const noMetadata = process.argv.includes('--no-metadata');
  const watch = process.argv.includes('--watch');
  const docs = process.argv.includes('--docs')? require('./docs') : null;
  @@ -48,7 +48,7 @@ function update (ids) {
  if (ids) {
  console.log(ids.reduce((formatted, id) => {
  - return `${formatted}\n ${id.replace(pwdRegex, '')}`;
  + return `${formatted}\n ${path.relative(process.cwd(), id)}`;
  }, ''));
  }
  