Fix make command nob being executed properly in wrapper scripts

scripts/run_client

@@ -94,7 +94,7 @@ echo "create_qdisc $qdisc_options";
 $script_dir/create_qdisc $qdisc_options;
 
 echo "make client";
-$script_dir/../packet-exchange/build/make client;
+cd $script_dir/../packet-exchange/build;make client;cd $script_dir
 
 echo "client $client_options $ip $redirect";
 $script_dir/../packet-exchange/build/client $client_options $ip $redirect;

scripts/run_server

@@ -77,7 +77,7 @@ if [ -n "${use_tcpdump}" ]; then
 else
 
   echo "make server";
-  $script_dir/../packet-exchange/build/make server;
+  cd $script_dir/../packet-exchange/build;make server;cd $script_dir
 
   echo "server $server_options $redirect";
   $script_dir/../packet-exchange/build/server $server_options $redirect;