don't print on --tp-export (#77)

--tp-export also works with --tp-carrier now so fix that to not
accidentally print which breaks things for people redirecting scripts
and is Not Good.

Signed-off-by: Amy Tobey <atobey@equinix.com>

cmd/helpers.go

@@ -141,17 +141,14 @@ func GetExitCode() int {
 func propagateOtelCliSpan(ctx context.Context, span trace.Span, target io.Writer) {
 	saveTraceparentToFile(ctx, config.TraceparentCarrierFile)
 
-	// --tp-print / --tp-export
-	if !config.TraceparentPrint && !config.TraceparentPrintExport {
-		return
-	}
+	if config.TraceparentPrint {
+		sc := trace.SpanContextFromContext(ctx)
+		traceId := sc.TraceID().String()
+		spanId := sc.SpanID().String()
 
-	sc := trace.SpanContextFromContext(ctx)
-	traceId := sc.TraceID().String()
-	spanId := sc.SpanID().String()
-
-	tp := getTraceparent(ctx)
-	printSpanData(target, traceId, spanId, tp)
+		tp := getTraceparent(ctx)
+		printSpanData(target, traceId, spanId, tp)
+	}
 }
 
 // printSpanData takes the provided strings and prints them in a consitent format,