[8.1.2] `prepare --verbose` gives conflicting information

```
λ cordova prepare ios --verbose
...
Config.xml and package.json platforms are the same. No pkg.json modification.
Package.json and config.xml platforms are different. Updating config.xml with most current list of platforms.
```

First it says they are same, then it says they are different. Confusing.

(`pkg.json` is also not a real file)

Start by reproducing `cordova prepare ios --verbose` and inspect the platform synchronization messages for the two contradictory statements. Update the wording so it accurately describes whether `config.xml` and `package.json` platforms match, and replace the incorrect `pkg.json` reference; done when the verbose output is consistent.

Written by the indexing model from the issue text.