Fixed help for smradius

Change-Id: I2bb583c48073c180539ecd3e25c8173643c8712a

smadmin

@@ -305,6 +305,7 @@ Usage: $0 [args]
     --config=<file>        Configuration file
     --debug                Put into debug mode
     --cleanup              Cleanup database records
+    --reset-userdata       Reset user data counters in addition to --cleanup
 
 EOF
 }