Fix dnsmasq '_PATH_LOG' undeclared build error.

This change came from upstream, presumably so they can build against the NDK.

(cherry picked from commit 70eeec149a396b7c457d05de9e38d270a861b9fa)

Change-Id: Ic8df0bcf2c1a0619005e6a87ee467e1242da22fe
1 file changed