Reformat Robot files to follow best practices

Best practices in Robot files consist in using three spaces as
separator and not using tabs. This change updates all files
and includes the checking of the format as part of
`devops-stages/stage-test.sh`. In addition, it checks that files
have no CRLF terminators.

Change-Id: Ie71c2dd92585eba3baf98df0be54f05828819ad8
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/robot-systest/testsuite/hackfest_basic.robot b/robot-systest/testsuite/hackfest_basic.robot
index 1996d81..092074a 100644
--- a/robot-systest/testsuite/hackfest_basic.robot
+++ b/robot-systest/testsuite/hackfest_basic.robot
@@ -11,7 +11,7 @@
 #   limitations under the License.
 
 *** Settings ***
-Documentation     [HACKFEST-BASIC] Basic NS with a single-VDU VNF
+Documentation   [HACKFEST-BASIC] Basic NS with a single-VDU VNF
 
 Library   OperatingSystem
 Library   String
@@ -70,16 +70,16 @@
 
 Get Vnf Ip Address
 
-    ${ip_addr}  Get Vnf Management Ip Address   ${ns_id}   ${vnf_member_index}
+    ${ip_addr}   Get Vnf Management Ip Address   ${ns_id}   ${vnf_member_index}
     log   ${ip_addr}
     Set Suite Variable   ${vnf_ip_addr}   ${ip_addr}
 
 Test Ping
-    Test Connectivity  ${vnf_ip_addr}
+    Test Connectivity   ${vnf_ip_addr}
 
 Test SSH Access
     Sleep   30s   Waiting ssh daemon to be up
-    Test SSH Connection  ${vnf_ip_addr}  ${username}  ${password}  ${privatekey} 
+    Test SSH Connection   ${vnf_ip_addr}   ${username}   ${password}   ${privatekey} 
 
 Delete NS Instance Test
     [Tags]   cleanup
@@ -101,12 +101,12 @@
 
 *** Keywords ***
 Suite Cleanup
-    [Documentation]  Test Suit Cleanup: Deleting Descriptor, instance and vim
+    [Documentation]   Test Suit Cleanup: Deleting Descriptor, instance and vim
 
-    Run Keyword If Any Tests Failed  Delete NS   ${ns_name}
+    Run Keyword If Any Tests Failed   Delete NS   ${ns_name}
 
-    Run Keyword If Any Tests Failed  Delete NSD   ${nsd_name}
+    Run Keyword If Any Tests Failed   Delete NSD   ${nsd_name}
 
-    Run Keyword If Any Tests Failed  Delete VNFD   ${vnfd_name}
+    Run Keyword If Any Tests Failed   Delete VNFD   ${vnfd_name}