Fix nil map access
@@ -22,6 +22,7 @@ const (
func NewSetCommand(f cmdutil.Factory, ioStreams cmdutil.IOStreams) *cobra.Command {
o := NewConfigOptions(ioStreams)
o.Run = o.runSet
+ o.Source = make(map[string]string)
cmd := &cobra.Command{
Use: "set NAME [VALUE]",
