message: Upgrade rules_closure to adapt incompatible changes in Bazel 0.26
diff: @@ -4,11 +4,11 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive", "http_file"
  http_archive(
  name = "io_bazel_rules_closure",
  - sha256 = "e0a111000aeed2051f29fcc7a3f83be3ad8c6c93c186e64beb1ad313f0c7f9f9",
  - strip_prefix = "rules_closure-cf1e44edb908e9616030cc83d085989b8e6cd6df",
  + sha256 = "5b00383d08dd71f28503736db0500b6fb4dda47489ff5fc6bed42557c07c6ba9",
  + strip_prefix = "rules_closure-308b05b2419edb5c8ee0471b67a40403df940149",
  urls = [
  - "http://mirror.tensorflow.org/github.com/bazelbuild/rules_closure/archive/cf1e44edb908e9616030cc83d085989b8e6cd6df.tar.gz",
  - "https://github.com/bazelbuild/rules_closure/archive/cf1e44edb908e9616030cc83d085989b8e6cd6df.tar.gz", # 2019-04-04
  + "http://mirror.tensorflow.org/github.com/bazelbuild/rules_closure/archive/308b05b2419edb5c8ee0471b67a40403df940149.tar.gz",
  + "https://github.com/bazelbuild/rules_closure/archive/308b05b2419edb5c8ee0471b67a40403df940149.tar.gz", # 2019-06-13
  ],
  )
  