JSHINT @link(https://www.npmjs.com/package/gulp-jshint) @link(http://jshint.com/docs/) NB: unless `lookup` option is set to false, linter will search for ".jshintrc" in the file's directory and then climb upwards.
function hinter(fspec, opt_options) {
    return gulp.src(fspec)
      .pipe(ignorer.exclude(excludes))
      .pipe(jshint(opt_options))
      .pipe(jshint.reporter(stylish));
  }