Comment # 5 on bug 1119895 from Jiri Slaby

Fixed as a side-effect of this -next commit:
commit 10077c9f2dae1afabab2808a0326ecf3e8e5a82c
Author: Masahiro Yamada <yamada.masahiro@socionext.com>
Date:   Fri May 17 16:54:27 2019 +0900

    s390: drop meaningless 'targets' from tools Makefile

Pushed to master & stable.