Minor fix in SA07 robot test

Change-Id: I5ba876dd6d590f763117bd1678f45d4af3b9915d
Signed-off-by: aguilard <e.dah.tid@telefonica.com>

robot-systest/testsuite/sa_07-alarms_from_sa-related_vnfs.robot

@@ -108,7 +108,7 @@ Start Webhook Service
 
     Variable Should Exist   ${privatekey}   msg=SSH private key not available
     Sleep   40 seconds   Wait for SSH daemon to be up
-    ${stdout}=   Execute Remote Command Check Rc Return Output   ${ws_vnf_ip_addr}   ${username}   ${password}   ${privatekey}   while true; do { echo -e 'HTTP/1.1 200 OK\r\n'; test; } | nc -l '${ws_port}'; done > '${ws_log_file}' 2>&1 &
+    ${stdout}=   Execute Remote Command Check Rc Return Output   ${ws_vnf_ip_addr}   ${username}   ${password}   ${privatekey}   while true; do { echo -e 'HTTP/1.0 200 OK\r\nContent-Length: 0\r\n\r\n'; test; } | nc -l '${ws_port}'; done > '${ws_log_file}' 2>&1 &
 
 
 Create VNF Descriptor