Remove use of deprecated terse() on print_var

terse is now the default.

Change-Id: If25901eea7fdfa502b012cb995242790e7f6176d
Signed-off-by: Michael Walsh <micwalsh@us.ibm.com>
diff --git a/lib/dump_utils.py b/lib/dump_utils.py
index c149d77..75534bf 100755
--- a/lib/dump_utils.py
+++ b/lib/dump_utils.py
@@ -28,7 +28,7 @@
     Example robot program call:
 
     ${dump_dict}=  Get Dump Dict
-    Rprint Vars  dump_dict  fmt=terse
+    Rprint Vars  dump_dict
 
     Example output: