add missing JUST (#5357)

* add missing JUST

Signed-off-by: daquexian <daquexian566@gmail.com>

* remove redundant header

Signed-off-by: daquexian <daquexian566@gmail.com>

* add missing JUST in master

Signed-off-by: daquexian <daquexian566@gmail.com>

* fix compile error on gcc5

Signed-off-by: daquexian <daquexian566@gmail.com>

Co-authored-by: oneflow-ci-bot <69100618+oneflow-ci-bot@users.noreply.github.com>