Add check of spaces at EOL in stage-test

Change-Id: I5d4ebc92eded762475a7a33f6a61acf870c8413d
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/robot-systest/testsuite/slice_01-network_slicing.robot b/robot-systest/testsuite/slice_01-network_slicing.robot
index 8f666d1..33d3bab 100644
--- a/robot-systest/testsuite/slice_01-network_slicing.robot
+++ b/robot-systest/testsuite/slice_01-network_slicing.robot
@@ -134,7 +134,7 @@
     [Documentation]   SSH access to the slice middle vnf (mgmt_vnf_ip) with the credentials provided in the variables file
 
     Sleep   30s   Waiting ssh daemon to be up
-    Test SSH Connection   ${mgmt_vnf_ip}   ${username}   ${password}   ${privatekey} 
+    Test SSH Connection   ${mgmt_vnf_ip}   ${username}   ${password}   ${privatekey}
 
 
 Test Slice Connectivity