Description of problem:
Rather than identifying system with a non-unique name, one might want to use it's ID. In other commands, you just use it in place of name. In system_runscript command, however, when you do this, you get an error:

ERROR: sequence item 0: expected string, int found

How reproducible:
Deterministic

Steps to Reproduce:
system_runscript <ID> -uroot -groot -t600 -snow -lLABEL -f/root/script.sh

Actual results:
Error shown above

Expected results:
Behavior consistent with other commands when identifying a system with it's ID