[coconut] Show transition field for env if not empty

Author: teo

coconut/control/control.go

@@ -511,6 +511,9 @@ func ShowEnvironment(cxt context.Context, rpc *coconut.RpcClient, cmd *cobra.Com
 	_, _ = fmt.Fprintf(o, "description:        %s\n", env.GetDescription())
 	_, _ = fmt.Fprintf(o, "created:            %s\n", formatTimestamp(env.GetCreatedWhen()))
 	_, _ = fmt.Fprintf(o, "state:              %s\n", colorState(env.GetState()))
+	if currentTransition := env.GetCurrentTransition(); len(currentTransition) != 0 {
+		_, _ = fmt.Fprintf(o, "transition:              %s\n", currentTransition)
+	}
 	_, _ = fmt.Fprintf(o, "public:             %t\n", response.Public)
 	_, _ = fmt.Fprintf(o, "run number:         %s\n", rnString)
 	_, _ = fmt.Fprintf(o, "number of FLPs:     %s\n", formatNumber(env.GetNumberOfFlps()))