[FS#638] dnsmasq user doesn't get created if you sysupgrade from OpenWRT

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - diizzyy (diizzyy) 

Attached to Project - LEDE Project
Summary - dnsmasq user doesn't get created if you sysupgrade from OpenWRT
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - 
 If you do a sysupgrade from a version of OpenWRT where dnsmasq runs as root it'll fail to start afterwards because the dnsmasq user doesn't exist.

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=638