Properly print non-strings with the TxtOutputter
Properly print non-strings with the TxtOutputter

After adding support for using different outputters for salt-call -g,
I noticed it would blow up with ran with --text-out as pythonpath
and cpu_flags aren't strings. Now just print the equiv of repr()
on non-strings and all will be well.

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt