UnhandledPromiseRejectionWarning when creating plugin without ID

[hollyschinsky]

If I run the following to create a plugin, it returns an UnhandledPromiseRejectionWarning though the plugin does get created.

       $ phonegap-plugin-create MyAwesomePlugin MyAwesomePlugin
       ? license MIT
       (node:10321) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): TypeError: Cannot read property 'toLowerCase' of undefined

Would be nice to use a default id when one is not provided or prompt for one.