Schema: show type string with minLength 1 as "non-empty"

[dolmen]

With the following schema definition:

name:
    type: string
    description: Name of the resource
    minLength: 1

The current rendering says: « >=1 characters »

It would be better for human consumption to specialize the case where minLength is 1 and maxLength is not set to show instead « non-empty ».