Merge pull request #3 from inngest/chore/fmt

Use `fmt.Fprintf` instead of writing to stdout directly

actionsdk/actionsdk.go

@@ -27,7 +27,7 @@ func WriteError(err error) {
  log.Fatal(fmt.Errorf("unable to marshal error: %w", err))
  }
 
- _, err = os.Stderr.Write(byt)
+ _, err = fmt.Fprint(os.Stdout, string(byt))
  if err != nil {
  log.Fatal(fmt.Errorf("unable to write error: %w", err))
  }
@@ -42,15 +42,15 @@ func WriteError(err error) {
 // of this SDK, and writing more than once may produce an error in the future.
 func WriteResult(i interface{}) error {
  if i == nil {
- _, err := os.Stdout.Write([]byte("{}"))
+ _, err := fmt.Fprint(os.Stdout, "{}")
  return err
  }
 
  byt, err := json.Marshal(i)
  if err != nil {
  return fmt.Errorf("error writing output: %w", err)
  }
- _, err = os.Stdout.Write(byt)
+ _, err = fmt.Fprint(os.Stdout, string(byt))
  return err
 }