Roll cli_util

```
$ git log --format="%C(auto) %h %s" 8c504de5deb08fe32ecf51f9662bb37d8c708e57..c2dc871784b59720e6cf5794dee1a20735df3feb
 c2dc871 Introduce applicationConfigHome (#66)
 86e72b5 Revert to 'meta: ^1.3.0'. (#65)
 cfd1836 Update  constraint to '>=1.3.0 <3.0.0'. (#64)
 16e8994 enable recommended lints (#63)
```

Change-Id: I0191d2b2dadafed2e93b354d207d32ef79fa51d6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/213760
Reviewed-by: Sigurd Meldgaard <sigurdm@google.com>
Commit-Queue: Jonas Jensen <jonasfj@google.com>

DEPS

@@ -84,7 +84,7 @@ vars = {
   "characters_rev": "6ec389c4dfa8fce14820dc5cbf6e693202e7e052",
   "charcode_rev": "84ea427711e24abf3b832923959caa7dd9a8514b",
   "chrome_rev" : "19997",
-  "cli_util_rev" : "8c504de5deb08fe32ecf51f9662bb37d8c708e57",
+  "cli_util_rev" : "c2dc871784b59720e6cf5794dee1a20735df3feb",
   "clock_rev" : "a494269254ba978e7ef8f192c5f7fec3fc05b9d3",
   "collection_rev": "a4c941ab94044d118b2086a3f261c30377604127",
   "convert_rev": "e063fdca4bebffecbb5e6aa5525995120982d9ce",