utillinux 2.37.1 fails to build with older gcc (4.94, 4.8.5)

See https://github.com/util-linux/util-linux/issues/1405. I've created a patch to libuuid/src/unparse.c and added it locally to my superbuild and it works fine. Want me to provide this fix for now until utillinux 2.37.3 is release?

FYI: @ben.boeckel