Fixes issues with UBIFS file system when due to unclean shutdown files would
end up with size 0. Furthermore, few style fixes are included too.
Signed-off-by: Luka Perkov <luka@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38410 3c298f89-4303-0410-b956-a3cf2f4a3e73