provide an example to sfi renew help

diff --git a/sfa/client/sfi.py b/sfa/client/sfi.py
index 8658910..fc4e609 100644 (file)
--- a/sfa/client/sfi.py
+++ b/sfa/client/sfi.py
@@ -1396,7 +1396,7 @@ use this if you mean an authority instead""")
             print value
         return value
 
-    @declare_command("slice_hrn [<sliver_urn>...] time","")
+    @declare_command("slice_hrn [<sliver_urn>...] time","sfi renew onelab.ple.heartbeat 2015-04-31")
     def renew(self, options, args):
         """
         renew slice (Renew)