Confusing syntax error message when pointing to a package that does not exist

Thank you for this patch utility.

I'm using the latest (as of today), versions of the patch packages.
```json
"patch-package": "^8.0.0",
"postinstall-postinstall": "^2.1.0",
```

Other versions:
node: 18.10.0
yarn: 1.22.21

When I go to create the patch using npx patch-package `` I get the following syntax error:

```js
... /node_modules/fs-extra/lib/mkdirs/make-dir.js:85
} catch {
^

SyntaxError: Unexpected token {
at createScript (vm.js:80:10)
at Object.runInThisContext (vm.js:139:10)
at Module._compile (module.js:617:28)
at Object.Module._extensions..js (module.js:664:10)
at Module.load (module.js:566:32)
at tryModuleLoad (module.js:506:12)
at Function.Module._load (module.js:498:3)
at Module.require (module.js:597:17)
at require (internal/module.js:11:18)
at Object. (.../node_modules/fs-extra/lib/mkdirs/index.js:3:44)

```

The `patch-package` dependency that is causing the error:

```json
"fs-extra": "^9.0.0",
```

So, to be clear the operation works as expected when the package name is correct. However, if I make a mistake on the name of the package to be patched, it gives this error that suggests something else is wrong.

I hope this helps the next person interpret this error :))