old_contents: #!/usr/bin/env node
  
  const {stdout, stderr, exit, argv} = process;
  
  const includes = require('array-includes');
  
  const flags = require('minimist')(argv.slice(2), {boolean: true});
  const directories = flags._;
  delete flags._;
  
  // Print usage
  
  if (flags.help) stdout.write([
    require('./help/synopsis'),
    require('./help/description'),
    require('./help/options'),
  ].join('\n\n'));
  
  else if (flags.h) stdout.write(require('./help/usage'));
  
  // Exit early
  
  if (flags.h || flags.help) exit(0);
  
  if (
    !directories.length ||
    Object.keys(flags).some(
      (flag) => !includes(['h', 'help'], flag)
    )
  ) {
    stderr.write(require('./help/usage'));
    exit(1);
  }
  
  // Down to business!
  
  const {resolve, basename} = require('path');
  
  const {readdir, writeFile} = require('fs-promise');
  
  const cwd = process.cwd();
  const lessExtension = /\.less$/;
  const isLess = (filename) => lessExtension.test(filename);
  const stripExtension = (filename) => filename.replace(lessExtension, '');
  
  directories.forEach((directory) => {
    const directoryName = basename(directory);
    const absolutePath = function(path) {return resolve(cwd, path);};
  
    readdir(absolutePath(directory))
      .then((allFiles) => {
        const content = allFiles
          .filter(isLess)
          .map(stripExtension)
          .map((module) => (
            `@import "./${directoryName}/${module}";\n`
          ))
          .join('')
        ;
  
        const path = `${absolutePath(directory)}.less`;
  
        return writeFile(path, content)
          .then(() => stdout.write(`Wrote ${path}.\n`))
        ;
      })
      .then(() => exit(0))
      .catch((error) => {
        throw error;
      })
    ;
  });
  
new_contents: #!/usr/bin/env node
  
  const {stdout, stderr, exit, argv} = process;
  
  const includes = require('array-includes');
  
  const flags = require('minimist')(argv.slice(2), {boolean: true});
  const directories = flags._;
  delete flags._;
  
  // Print usage
  
  if (flags.help) stdout.write([
    require('./help/synopsis'),
    require('./help/description'),
    require('./help/options'),
  ].join('\n\n'));
  
  else if (flags.h) stdout.write(require('./help/usage'));
  
  // Exit early
  
  if (flags.h || flags.help) exit(0);
  
  if (
    !directories.length ||
    Object.keys(flags).some(
      (flag) => !includes(['h', 'help'], flag)
    )
  ) {
    stderr.write(require('./help/usage'));
    exit(1);
  }
  
  // Down to business!
  
  const {resolve, basename} = require('path');
  
  const {readdir, writeFile} = require('fs-promise');
  
  const cwd = process.cwd();
  const lessExtension = /\.less$/;
  const isLess = (filename) => lessExtension.test(filename);
  const stripExtension = (filename) => filename.replace(lessExtension, '');
  
  directories.forEach((directory) => {
    const directoryName = basename(directory);
    const absolutePath = function(path) {return resolve(cwd, path);};
  
    readdir(absolutePath(directory))
      .then((allFiles) => {
        const content = allFiles
          .filter(isLess)
          .map(stripExtension)
          .map((module) => (
            `@import "./${directoryName}/${module}";\n`
          ))
          .join('')
        ;
  
        const path = `${absolutePath(directory)}.less`;
  
        return writeFile(path, content)
          .then(() => stdout.write(`Written ${path}.\n`))
        ;
      })
      .then(() => exit(0))
      .catch((error) => {
        throw error;
      })
    ;
  });
  
subject: Reword message