iproute2: build failure due to missing '\' in Makefile

After latest commit 'Install all tc and ip sub pages' this error
occurs on make.

make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/home/git/kernel.org/iproute2/man/man3'
make[2]: Entering directory `/home/git/kernel.org/iproute2/man/man8'
Makefile:8: *** commands commence before first target.  Stop.
make[2]: Leaving directory `/home/git/kernel.org/iproute2/man/man8'

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
1 file changed