Use case-sensitive keyword Log instead of log

Change-Id: I756aedef764cdbbc91d27b6eba060cb4e5fea66b
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/robot-systest/testsuite/hackfest_cloudinit.robot b/robot-systest/testsuite/hackfest_cloudinit.robot
index 5f20a71..cb95f0f 100644
--- a/robot-systest/testsuite/hackfest_cloudinit.robot
+++ b/robot-systest/testsuite/hackfest_cloudinit.robot
@@ -70,7 +70,7 @@
 Get Vnf Ip Address
 
     ${ip_addr}   Get Vnf Management Ip Address   ${ns_id}   ${vnf_member_index}
-    log   ${ip_addr}
+    Log   ${ip_addr}
     Set Suite Variable   ${vnf_ip_addr}   ${ip_addr}
 
 
@@ -83,7 +83,7 @@
 Check Remote File Injected Via Cloud-init
 
     ${stdout}=   Execute Remote Command Check Rc Return Output   ${vnf_ip_addr}   ${username}   ${password}   ${EMPTY}   sudo cat /root/helloworld.txt
-    log   ${stdout}
+    Log   ${stdout}
 
 
 Delete NS Instance Test