The package golang-github-go-viper-mapstructure 2.1.0-2 has been added to kali-rolling. It has been imported from Debian: https://tracker.debian.org/pkg/golang-github-go-viper-mapstructure -- More information about golang-github-go-viper-mapstructure: https://pkg.kali.org/pkg/golang-github-go-viper-mapstructure
