Update typo in docblock for Worker.php

*cough* I am going to be that guy... there is a typo in your docblock, bro. =).

Targets 4.1 branch as per comment in pull request #4664
Merge pull request #4678 from timgws/patch-2

Update typo in docblock for Worker.php
Tweak how queue restarting works.
Fix spacing.
add priority in eloquent auto events (creating, created, upstating, etc.)
use of tab instead of 4 spaces
fix tests for PR #4766
performUpdate should return false if no update is performed
Merge pull request #4773 from zupolgec/4.1

performUpdate should return false if no update is performed
Merge branch '4.1' into 4.2
Merge branch '4.2'
Merge pull request #4762 from joychao/patch-3

Fix spacing.
return null when forgetting
Merge pull request #4786 from alprs/fix/get-expired-return

[Cache] get() return null when forgetting
Return null.
Merge branch '4.2'
Merge pull request #4766 from etienneroudeix/master

allow to set event priority in eloquent creating, created, updating, etc.
Update change log.