Netcat 1.10 compatibility require server options
1.10 compatibility without server option
produce error "NO OPT l!" and completely not function
Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44746 3c298f89-4303-0410-b956-a3cf2f4a3e73