Fix warning message in code

Change-Id: Ie4779dc3c0533e518bd43ebe7f1c28331263a11c
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/common_utils.robot b/lib/common_utils.robot
index 674bde3..7c0d484 100755
--- a/lib/common_utils.robot
+++ b/lib/common_utils.robot
@@ -578,21 +578,21 @@
 
 Check BMC CPU Performance
     [Documentation]   Minimal 10% of proc should be free in 3 sample
-    :FOR  ${var}  IN Range  1  4
+    :FOR  ${var}  IN RANGE  1  4
     \     BMC CPU Performance check
 
 
 Check BMC Mem Performance
     [Documentation]   Minimal 10% of memory should be free
 
-    :FOR  ${var}  IN Range  1  4
+    :FOR  ${var}  IN RANGE  1  4
     \     BMC Mem Performance check
 
 
 Check BMC File System Performance
     [Documentation]  Check for file system usage for 4 times
 
-    :FOR  ${var}  IN Range  1  4
+    :FOR  ${var}  IN RANGE  1  4
     \     BMC File System Usage check