Suppress "Resource or subcommand '' is not recognized." message when running

arv with no parameters.  refs #2986

diff --git a/sdk/cli/bin/arv b/sdk/cli/bin/arv
index cf3fffa1311febc928ba0d466c0e93092ef8f8b2..684270304b84940e545286862eefbe8a33919d31 100755 (executable)
--- a/sdk/cli/bin/arv
+++ b/sdk/cli/bin/arv
@@ -390,7 +390,7 @@ def parse_arguments(discovery_document, subcommands)
 
   if not subcommands.include? resource
     if not resource_types.include?(resource)
-      puts "Resource or subcommand '#{resource}' is not recognized.\n\n"
+      puts "Resource or subcommand '#{resource}' is not recognized.\n\n" if !resource.nil?
       help_resources(option_parser, discovery_document, resource)
     end