[FS#994] dnsmasq repeatedly crashes due to invalid write access

[LEDE Bugs]

The following task is now closed:

FS#994 - dnsmasq repeatedly crashes due to invalid write access
User who did this - Hans Dedecker (dedeckeh)

Reason for closing: Fixed
Additional comments about closing: Fixed in dnsmasq v2.78

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=994