rune: Minor code cleanup

Signed-off-by: Jia Zhang <zhang.jia@linux.alibaba.com>

rune/libcontainer/configs/validate/validator.go

@@ -224,7 +224,7 @@ func (v *ConfigValidator) enclave(config *configs.Config) error {
 	path := config.Enclave.Path
 	if config.Enclave.Signer != "server" {
 		var err error
-		path, err = securejoin.SecureJoin(config.Rootfs, config.Enclave.Path)
+		path, err = securejoin.SecureJoin(config.Rootfs, path)
 		if err != nil {
 			return err
 		}

rune/libcontainer/container_linux.go

@@ -532,11 +532,11 @@ func (c *linuxContainer) commandTemplate(p *Process, childInitPipe *os.File, chi
 		}
 
 		if c.config.Enclave.Path != "" {
-			cmd.Env = append(cmd.Env, "_LIBCONTAINER_PAL_PATH="+string(c.config.Enclave.Path))
+			cmd.Env = append(cmd.Env, "_LIBCONTAINER_PAL_PATH="+c.config.Enclave.Path)
 		}
 
 		if c.config.Enclave.Signer != "server" {
-			cmd.Env = append(cmd.Env, "_LIBCONTAINER_PAL_ROOTFS="+string(c.config.Rootfs))
+			cmd.Env = append(cmd.Env, "_LIBCONTAINER_PAL_ROOTFS="+c.config.Rootfs)
 		}
 
 		if detached {