busybox stat tries to always print the selinux context, even if it
is not requested which leads to a segmentation fault due to
dereferencing a null-pointer.
This also changes the format-string used to print the context to
so it actually produces useful output.
Signed-off-by: Michael Gernoth <michael@gernoth.net>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>