Bump dependency opencontainers/runc@v1.0.0-rc10

vendor/github.com/opencontainers/runc/libcontainer/cgroups/fscommon/fscommon.go

@@ -0,0 +1,36 @@
+// +build linux
+
+package fscommon
+
+import (
+	"io/ioutil"
+
+	securejoin "github.com/cyphar/filepath-securejoin"
+	"github.com/pkg/errors"
+)
+
+func WriteFile(dir, file, data string) error {
+	if dir == "" {
+		return errors.Errorf("no directory specified for %s", file)
+	}
+	path, err := securejoin.SecureJoin(dir, file)
+	if err != nil {
+		return err
+	}
+	if err := ioutil.WriteFile(path, []byte(data), 0700); err != nil {
+		return errors.Wrapf(err, "failed to write %q to %q", data, path)
+	}
+	return nil
+}
+
+func ReadFile(dir, file string) (string, error) {
+	if dir == "" {
+		return "", errors.Errorf("no directory specified for %s", file)
+	}
+	path, err := securejoin.SecureJoin(dir, file)
+	if err != nil {
+		return "", err
+	}
+	data, err := ioutil.ReadFile(path)
+	return string(data), err
+}