Removed all tabs and trailing spaces from /tests

This commit is style changes only.
It removes trailing spaces and tabs from all files in /tests

Change-Id: Iae779c82b20d1cde264e64aeb4943585ce7426f5
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/tests/test_networkd.robot b/tests/test_networkd.robot
index 3b7ae88..bfd3fc7 100755
--- a/tests/test_networkd.robot
+++ b/tests/test_networkd.robot
@@ -1,7 +1,7 @@
 *** Settings ***
-Documentation		This suite will verifiy the Network Configuration Rest Interfaces
-...					Details of valid interfaces can be found here...
-...					https://github.com/openbmc/docs/blob/master/rest-api.md
+Documentation      This suite will verifiy the Network Configuration Rest Interfaces
+...                Details of valid interfaces can be found here...
+...                https://github.com/openbmc/docs/blob/master/rest-api.md
 
 Resource            ../lib/rest_client.robot
 Resource            ../lib/connection_client.robot