fix: jsdoc (#385)

Author: jannyHou

Diff for: lib/postgresql.js

@@ -112,7 +112,7 @@ PostgreSQL.prototype.connect = function(callback) {
  * @param {Object} [options] Options object
  * @callback {Function} [callback] The callback after the SQL statement is executed
  * @param {String|Error} err The error string or object
- * @param {Object[]) data The result from the SQL
+ * @param {Object[]} data The result from the SQL
  */
 PostgreSQL.prototype.executeSQL = function(sql, params, options, callback) {
   const self = this;