fixup! feat: backup revolution

pkg/upstream/container/exec.go

@@ -13,6 +13,8 @@ import (
 	"github.com/sirupsen/logrus"
 )
 
+// RunExec runs a command on a remote container. io.Writer corresponds to the
+// command output.
 func RunExec(dockerCli command.Cli, client *apiclient.Client, containerID string,
 	execConfig *types.ExecConfig) (io.Writer, error) {
 	ctx := context.Background()