old_contents: #!/usr/bin/env node
  /*eslint no-console: 0*/
  
  'use strict';
  
  const checker = require('license-checker');
  
  const INCOMPATIBLE_LICENCE_REGEX = /GPL/;
  
  checker.init({
    start: '.'
  }, function(json, err) {
    if (err) {
      console.error(err.message);
      process.exit(1);
    } else {
      const incompatibleDependencies = Object.keys(json).filter((packageName) => {
        let licenses = json[packageName].licenses;
  
        if (!Array.isArray(licenses))
          licenses = [licenses];
  
        if (licenses.find((license) => license.match(INCOMPATIBLE_LICENCE_REGEX)))
          return packageName;
      });
  
      if (incompatibleDependencies.length > 0) {
        console.error('Found packages with incompatible license: ' + JSON.stringify(incompatibleDependencies));
        process.exit(1);
      }
    }
  });
  
new_contents: #!/usr/bin/env node
  /*eslint no-console: 0*/
  
  'use strict';
  
  const checker = require('license-checker');
  
  const INCOMPATIBLE_LICENCE_REGEX = /GPL/;
  
  checker.init({
    start: '.'
  }, function(json, err) {
    if (err) {
      console.error(err.message);
      process.exit(1);
    } else {
      const incompatibleDependencies = Object.keys(json).filter((packageName) => {
        let licenses = json[packageName].licenses;
  
        if (!Array.isArray(licenses))
          licenses = [licenses];
  
        if (licenses.find((license) => license.match(INCOMPATIBLE_LICENCE_REGEX)))
          return packageName;
      });
  
      if (incompatibleDependencies.length > 0) {
        console.error('Found packages with incompatible license: ' + JSON.stringify(incompatibleDependencies));
        process.exit(1);
      } else {
        console.log('All is well! No packages with an incompatible license found.');
      }
    }
  });
  
subject: Print calming message on check-licenses.js succees