Fix argument processing for port({spawn, "…"}, …)
Fix argument processing for port({spawn, "…"}, …)

We now actually process quoted arguments, as well
as escaped quotes within such arguments.


csae1152/erjang,trifork/erjang,trifork/erjang,trifork/erjang,trifork/erjang,trifork/erjang,csae1152/erjang,csae1152/erjang,csae1152/erjang,trifork/erjang,trifork/erjang,csae1152/erjang