Update util.js

Author: sindresorhus

util.js

@@ -61,15 +61,15 @@ exports.getTestModifier = (node, mod) => {
 };
 
 /**
- * Removes given test-modifier from the source surrounding the given node
+ * Removes a given test-modifier from the source surrounding the given node
  *
  * @param {string} params.modifier - Name of the modifier
- * @param {Node} params.node - Estree-node as provided by Eslint
- * @param {Context} params.context - Eslint-context as provided
+ * @param {Node} params.node - ESTree-node as provided by Eslint
+ * @param {Context} params.context - ESLint-context as provided
  *
  * @return {Array} Compound parameters to be used as arguments for `fix.replaceTextRange()`
  */
-exports.removeTestModifier = function (params) {
+exports.removeTestModifier = params => {
 	const modifier = params.modifier.trim();
 	const range = exports.getTestModifier(params.node, modifier).range.slice();
 	const replacementRegExp = new RegExp(`\\.|${modifier}`, 'g');