Resolve violations of eslint-comments/no-use lint

Resolves #197

lib/codeql.js

@@ -407,6 +407,8 @@ function getExtraOptionsFromEnv(path) {
  *
  * - the special terminal step name '*' in `options` matches all path steps
  * - throws an exception if this conversion is impossible.
+ *
+ * Exported for testing.
  */
 function getExtraOptions(options, path, pathInfo) {
     var _a, _b, _c;