The task "jscs:src" does not fail for the doc comment indentations, but the indention need to be re-arranged.
Actual state
/**
* Perform a task.
*
* @param {Object} a - a.
* @return {Object} - Modified a.
*/Expected
/**
* Perform a task..
*
* @param {Object} a - a.
* @return {Object} - Modified a.
*/Developer Notes
This comprises reducing the indentation from the second line of comment to the last for each doc block.