fix typo

Author: sanfilip

lib/jobs/list.js

@@ -18,7 +18,7 @@ var path = require('path');
  * @param {string} [filter.machineType] - Optional machineType to match on
  * @param {string} [filter.state] - Optional state value to match on
  * @param {string} [filter.container] - Optional container to match on
- * @param {string} [filter.comand] - Optional command to match on
+ * @param {string} [filter.command] - Optional command to match on
  * @param {string} [filter.workspace] - Optional workspace path to match on.  Note: the original workspace path will be modified on upload to point to a temporary location.
  * @param {string} [filter.dataset] - Optional dataset to match on
  * @param {function} cb - Node-style error-first callback function