Sorting by mount point length can be implemented in a more
straightforward fashion since Go 1.8 introduced sort.Slice()
with an ability to provide a less() function in place.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Upstream-commit: a00310b54c0cdcafb402aeea92feca865da9fdf3
Component: engine