unpublish should warn you when removing last version

[Xanlantos]

If you unpublish the last version of a package you have to wait 24 hours until you can republish it, there should be a warning mentioning that when using npm-unpublish npm unpublish [<@scope>/]<pkg>@<version> on the last remaining version.

[pierreavn]

This would be very useful!

[Fifciu]

What about this one? It would be very useful.

[maksimu]

Please add this warning to NPM before un-publishing.

[Steffo99]

Having just made this mistake, I think it would be very useful.

[PaulRBerg]

PLEASE add a warning for this! I have to delay the launch of my project until tomorrow because of this.

[ebsaral]

I created a pull request: npm/cli#4191

[FelixSelter]

I agree

[megamanhxh]

The same mistake happened here, wished there was a warning before unpublishing the last remaining version

[Xanlantos]

just update npm the fix was accepted