Effortless bug submission

Let us create a bug command using the Cobra generator for users to submit issues to the developers of the audiofile CLI:

cobra-cli add bug
bug created at /Users/mmontagnino/Code/src/github.com/marianina8/audiofile

Now that we have the bug command created, the Run field is changed to extract details of the application and launch a web browser with the data already added and ready for the user to just finish off the submission with some extra details:

var bugCmd = &cobra.Command{
    Use: "bug",
    Short: "Submit a bug",
    Long: "Bug opens the default browser to start a bug
        report which will include useful system
        information.",
    RunE: func(cmd *cobra.Command, args []string) error {
        if len(args...