The package golang-github-mattn-go-runewidth 0.0.2+git20170510.3.97311d9-1 has been added to kali-rolling. It has been imported from Debian: https://tracker.debian.org/pkg/golang-github-mattn-go-runewidth -- More information about golang-github-mattn-go-runewidth: http://pkg.kali.org/pkg/golang-github-mattn-go-runewidth