As a contributor to wskdeploy, the file i18n_resources.go needs to regenerated, when you add or change any localized message.
In order to generate i18n_resources.go, you need to install go-bindata first:
$ go get -u github.com/jteeuwen/go-bindata/...
Then, go the HOME directory of wskdeploy and run the following command:
$ $GOPATH/bin/go-bindata -pkg wski18n -o wski18n/i18n_resources.go wski18n/resources;
Finally, add the default ASF license header to i18n_resources.go. Since each file of source code starts with the ASF license header, you need to add it to i18n_resources.go each time it is regenerated. You can find this license header in any other file of source code, e.g. i18n.go.