Update pub - leave packages directories alone

Change-Id: I56f269568972e16cd5e7ce57d2dc64bd6a6541d8
Reviewed-on: https://dart-review.googlesource.com/68801
Reviewed-by: Bob Nystrom <[email protected]>
Commit-Queue: Nate Bosch <[email protected]>

Author: natebosch

CHANGELOG.md

@@ -1,3 +1,12 @@
+## 2.1.0
+
+### Tool Changes
+
+#### Pub
+
+*   Pub will no longer delete directories named "packages".
+*   The `--packages-dir` flag is now ignored.
+
 ## 2.0.0
 
 This is the first major version release of Dart since 1.0.0, so it contains many

DEPS

@@ -111,7 +111,7 @@ vars = {
   "ply_rev": "604b32590ffad5cbb82e4afef1d305512d06ae93",
   "pool_tag": "1.3.6",
   "protobuf_tag": "0.9.0",
-  "pub_rev": "58fe996eab8d54f28f5109c407ff0ab62fbd835d",
+  "pub_rev": "5962908a66e814dd78f6856a4e5f792c6db65fbc",
   "pub_semver_tag": "1.4.2",
   "quiver_tag": "0.29.0+2",
   "resource_rev": "2.1.5",