Fix spacing for variables syntax

Section name should be in format '*** Variables ***'

Changes:
    - Extra space in the syntax

Tested:
    - NA

Change-Id: I70510f0cc42f9aa341d453a26508df29f1a54fb6
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/ipmi/test_ipmi_cipher.robot b/ipmi/test_ipmi_cipher.robot
index e6cb1cc..73c1d48 100644
--- a/ipmi/test_ipmi_cipher.robot
+++ b/ipmi/test_ipmi_cipher.robot
@@ -16,7 +16,7 @@
 
 Test Tags       IPMI_Cipher
 
-*** Variables  ***
+*** Variables ***
 ${cipher_suite}      standard
 &{payload_type}      ipmi=0  sol=1
 @{list_index_value}  0x80  0x00