Update code to adhere to coding guideline

Change-Id: I859340a2f17e19b7b5cbb24807499db7ad455f74
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/openpower/ras/test_host_ras.robot b/openpower/ras/test_host_ras.robot
index 0409a85..1873329 100755
--- a/openpower/ras/test_host_ras.robot
+++ b/openpower/ras/test_host_ras.robot
@@ -353,7 +353,7 @@
 
     Collect eSEL Log  ${log_prefix}
     ${error_log_file_path}=  Catenate  ${log_prefix}esel.txt
-    ${rc}  ${output} =  Run and Return RC and Output
+    ${rc}  ${output}=  Run and Return RC and Output
     ...  grep -i ${signature_desc} ${error_log_file_path}
     Should Be Equal  ${rc}  ${0}
     Should Not Be Empty  ${output}