If you have anything on the first line, then continue it with the same indentation.  If you are already pushed far out, that probably means to put the first argument on the next line.  

The reason for this is that if you have something like:

```
function_call_with_a_long_name(arg1,
    arg2,
    arg3,
    arg4)
```

it might visually seem like only arg2, arg3, and arg4 are passed in since arg1 is at a different indentation than everything else.