../../lib/libcriu.so: undefined reference to `strlcpy'

v2: don't include string.h

Reported-by: Mr Jenkins
Cc: Kir Kolyshkin <kir@openvz.org>
Fixes: e5654e58 ("Use strlcpy")
Signed-off-by: Andrew Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>