Capitalized "arguments" to adhere to new code standards.

Capitalized "arguments" in places it wasn't.
This commit is style changes only.

Change-Id: I079cd9dbd4bd9aef630ba871c4e1b21f38efb30c
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/tests/test_eventlog.robot b/tests/test_eventlog.robot
index 1e79897..7ec4d1b 100644
--- a/tests/test_eventlog.robot
+++ b/tests/test_eventlog.robot
@@ -201,7 +201,7 @@
 *** Keywords ***
 
 create a test log
-    [arguments]
+    [Arguments]
     ${data}=   create dictionary   data=@{EMPTY}
     ${resp}=   openbmc post request   ${EVENT_RECORD}action/acceptTestMessage    data=${data}
     should be equal as strings      ${resp.status_code}     ${HTTP_OK}