message: bazel: set strict action env
  We pass all environment variables we care about explicitly and should
  not pass any other not set variables.
diff: @@ -13,6 +13,7 @@ startup --host_jvm_args=-Xmx2g
  build --workspace_status_command=bazel/get_workspace_status
  build --experimental_remap_main_repo
  build --experimental_local_memory_estimate
  +build --experimental_strict_action_env=true
  build --host_force_python=PY2
  build --action_env=BAZEL_LINKLIBS=-l%:libstdc++.a
  build --action_env=BAZEL_LINKOPTS=-lm:-static-libgcc
  