`ionic info`: Output full path only once for `cli packages`

[janpio]

See this part of the current output:

cli packages:

    @ionic/cli-plugin-cordova       : 1.5.0 (C:\Users\Jan\Documents\stromzaehler\node_modules\@ionic\cli-plugin-cordova)
    @ionic/cli-plugin-ionic-angular : 1.4.0 (C:\Users\Jan\Documents\stromzaehler\node_modules\@ionic\cli-plugin-ionic-angular)
    @ionic/cli-utils                : 1.6.0 (C:\Users\Jan\Documents\stromzaehler\node_modules\@ionic\cli-utils)
    ionic (Ionic CLI)               : 3.6.0 (C:\Users\Jan\Documents\stromzaehler\node_modules\ionic)

Could maybe also be:

cli packages (path: C:\Users\Jan\Documents\stromzaehler\node_modules)

    @ionic/cli-plugin-cordova       : 1.5.0 (\@ionic\cli-plugin-cordova)
    @ionic/cli-plugin-ionic-angular : 1.4.0 (\@ionic\cli-plugin-ionic-angular)
    @ionic/cli-utils                : 1.6.0 (\@ionic\cli-utils)
    ionic (Ionic CLI)               : 3.6.0 (\ionic)

Less data leakage and stuff to replace if you want to avoid it.