[VOL-4290] Voltha go library updates for gRPC migration

Change-Id: I1aa2774beb6b7ed7419bc45aeb53fcae8a8ecda0
diff --git a/vendor/go.uber.org/multierr/.gitignore b/vendor/go.uber.org/multierr/.gitignore
index 61ead86..b9a05e3 100644
--- a/vendor/go.uber.org/multierr/.gitignore
+++ b/vendor/go.uber.org/multierr/.gitignore
@@ -1 +1,4 @@
 /vendor
+cover.html
+cover.out
+/bin
diff --git a/vendor/go.uber.org/multierr/.travis.yml b/vendor/go.uber.org/multierr/.travis.yml
index a6412b7..8636ab4 100644
--- a/vendor/go.uber.org/multierr/.travis.yml
+++ b/vendor/go.uber.org/multierr/.travis.yml
@@ -4,30 +4,20 @@
 
 env:
   global:
-    - GO15VENDOREXPERIMENT=1
+    - GO111MODULE=on
 
 go:
-  - 1.11.x
-  - 1.12.x
-  - 1.13.x
-
-cache:
-  directories:
-    - vendor
+  - oldstable
+  - stable
 
 before_install:
 - go version
 
-install:
-- |
-  set -e
-  make install_ci
-
 script:
 - |
   set -e
   make lint
-  make test_ci
+  make cover
 
 after_success:
 - bash <(curl -s https://codecov.io/bash)
diff --git a/vendor/go.uber.org/multierr/CHANGELOG.md b/vendor/go.uber.org/multierr/CHANGELOG.md
index f1b852c..6f1db9e 100644
--- a/vendor/go.uber.org/multierr/CHANGELOG.md
+++ b/vendor/go.uber.org/multierr/CHANGELOG.md
@@ -1,6 +1,31 @@
 Releases
 ========
 
+v1.6.0 (2020-09-14)
+===================
+
+-   Actually drop library dependency on development-time tooling.
+
+
+v1.5.0 (2020-02-24)
+===================
+
+-   Drop library dependency on development-time tooling.
+
+
+v1.4.0 (2019-11-04)
+===================
+
+-   Add `AppendInto` function to more ergonomically build errors inside a
+    loop.
+
+
+v1.3.0 (2019-10-29)
+===================
+
+-   Switch to Go modules.
+
+
 v1.2.0 (2019-09-26)
 ===================
 
diff --git a/vendor/go.uber.org/multierr/Makefile b/vendor/go.uber.org/multierr/Makefile
index b4bf73d..3160044 100644
--- a/vendor/go.uber.org/multierr/Makefile
+++ b/vendor/go.uber.org/multierr/Makefile
@@ -1,23 +1,17 @@
-export GO15VENDOREXPERIMENT=1
-
-PACKAGES := $(shell glide nv)
+# Directory to put `go install`ed binaries in.
+export GOBIN ?= $(shell pwd)/bin
 
 GO_FILES := $(shell \
 	find . '(' -path '*/.*' -o -path './vendor' ')' -prune \
 	-o -name '*.go' -print | cut -b3-)
 
-.PHONY: install
-install:
-	glide --version || go get github.com/Masterminds/glide
-	glide install
-
 .PHONY: build
 build:
-	go build -i $(PACKAGES)
+	go build ./...
 
 .PHONY: test
 test:
-	go test -cover -race $(PACKAGES)
+	go test -race ./...
 
 .PHONY: gofmt
 gofmt:
@@ -25,50 +19,24 @@
 	@gofmt -e -s -l $(GO_FILES) > $(FMT_LOG) || true
 	@[ ! -s "$(FMT_LOG)" ] || (echo "gofmt failed:" | cat - $(FMT_LOG) && false)
 
-.PHONY: govet
-govet:
-	$(eval VET_LOG := $(shell mktemp -t govet.XXXXX))
-	@go vet $(PACKAGES) 2>&1 \
-		| grep -v '^exit status' > $(VET_LOG) || true
-	@[ ! -s "$(VET_LOG)" ] || (echo "govet failed:" | cat - $(VET_LOG) && false)
-
 .PHONY: golint
 golint:
-	@go get golang.org/x/lint/golint
-	$(eval LINT_LOG := $(shell mktemp -t golint.XXXXX))
-	@cat /dev/null > $(LINT_LOG)
-	@$(foreach pkg, $(PACKAGES), golint $(pkg) >> $(LINT_LOG) || true;)
-	@[ ! -s "$(LINT_LOG)" ] || (echo "golint failed:" | cat - $(LINT_LOG) && false)
+	@cd tools && go install golang.org/x/lint/golint
+	@$(GOBIN)/golint ./...
 
 .PHONY: staticcheck
 staticcheck:
-	@go get honnef.co/go/tools/cmd/staticcheck
-	$(eval STATICCHECK_LOG := $(shell mktemp -t staticcheck.XXXXX))
-	@staticcheck $(PACKAGES) 2>&1 > $(STATICCHECK_LOG) || true
-	@[ ! -s "$(STATICCHECK_LOG)" ] || (echo "staticcheck failed:" | cat - $(STATICCHECK_LOG) && false)
+	@cd tools && go install honnef.co/go/tools/cmd/staticcheck
+	@$(GOBIN)/staticcheck ./...
 
 .PHONY: lint
-lint: gofmt govet golint staticcheck
+lint: gofmt golint staticcheck
 
 .PHONY: cover
 cover:
-	./scripts/cover.sh $(shell go list $(PACKAGES))
+	go test -coverprofile=cover.out -coverpkg=./... -v ./...
 	go tool cover -html=cover.out -o cover.html
 
 update-license:
-	@go get go.uber.org/tools/update-license
-	@update-license \
-		$(shell go list -json $(PACKAGES) | \
-			jq -r '.Dir + "/" + (.GoFiles | .[])')
-
-##############################################################################
-
-.PHONY: install_ci
-install_ci: install
-	go get github.com/wadey/gocovmerge
-	go get github.com/mattn/goveralls
-	go get golang.org/x/tools/cmd/cover
-
-.PHONY: test_ci
-test_ci: install_ci
-	./scripts/cover.sh $(shell go list $(PACKAGES))
+	@cd tools && go install go.uber.org/tools/update-license
+	@$(GOBIN)/update-license $(GO_FILES)
diff --git a/vendor/go.uber.org/multierr/error.go b/vendor/go.uber.org/multierr/error.go
index d4be183..5c9b67d 100644
--- a/vendor/go.uber.org/multierr/error.go
+++ b/vendor/go.uber.org/multierr/error.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2017 Uber Technologies, Inc.
+// Copyright (c) 2019 Uber Technologies, Inc.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
@@ -54,7 +54,7 @@
 //
 // 	errors := multierr.Errors(err)
 // 	if len(errors) > 0 {
-// 		fmt.Println("The following errors occurred:")
+// 		fmt.Println("The following errors occurred:", errors)
 // 	}
 //
 // Advanced Usage
@@ -130,7 +130,7 @@
 }
 
 // Errors returns a slice containing zero or more errors that the supplied
-// error is composed of. If the error is nil, the returned slice is empty.
+// error is composed of. If the error is nil, a nil slice is returned.
 //
 // 	err := multierr.Append(r.Close(), w.Close())
 // 	errors := multierr.Errors(err)
@@ -397,3 +397,53 @@
 	errors := [2]error{left, right}
 	return fromSlice(errors[0:])
 }
+
+// AppendInto appends an error into the destination of an error pointer and
+// returns whether the error being appended was non-nil.
+//
+// 	var err error
+// 	multierr.AppendInto(&err, r.Close())
+// 	multierr.AppendInto(&err, w.Close())
+//
+// The above is equivalent to,
+//
+// 	err := multierr.Append(r.Close(), w.Close())
+//
+// As AppendInto reports whether the provided error was non-nil, it may be
+// used to build a multierr error in a loop more ergonomically. For example:
+//
+// 	var err error
+// 	for line := range lines {
+// 		var item Item
+// 		if multierr.AppendInto(&err, parse(line, &item)) {
+// 			continue
+// 		}
+// 		items = append(items, item)
+// 	}
+//
+// Compare this with a verison that relies solely on Append:
+//
+// 	var err error
+// 	for line := range lines {
+// 		var item Item
+// 		if parseErr := parse(line, &item); parseErr != nil {
+// 			err = multierr.Append(err, parseErr)
+// 			continue
+// 		}
+// 		items = append(items, item)
+// 	}
+func AppendInto(into *error, err error) (errored bool) {
+	if into == nil {
+		// We panic if 'into' is nil. This is not documented above
+		// because suggesting that the pointer must be non-nil may
+		// confuse users into thinking that the error that it points
+		// to must be non-nil.
+		panic("misuse of multierr.AppendInto: into pointer must not be nil")
+	}
+
+	if err == nil {
+		return false
+	}
+	*into = Append(*into, err)
+	return true
+}
diff --git a/vendor/go.uber.org/multierr/glide.lock b/vendor/go.uber.org/multierr/glide.lock
deleted file mode 100644
index f9ea94c..0000000
--- a/vendor/go.uber.org/multierr/glide.lock
+++ /dev/null
@@ -1,19 +0,0 @@
-hash: b53b5e9a84b9cb3cc4b2d0499e23da2feca1eec318ce9bb717ecf35bf24bf221
-updated: 2017-04-10T13:34:45.671678062-07:00
-imports:
-- name: go.uber.org/atomic
-  version: 3b8db5e93c4c02efbc313e17b2e796b0914a01fb
-testImports:
-- name: github.com/davecgh/go-spew
-  version: 6d212800a42e8ab5c146b8ace3490ee17e5225f9
-  subpackages:
-  - spew
-- name: github.com/pmezard/go-difflib
-  version: d8ed2627bdf02c080bf22230dbb337003b7aba2d
-  subpackages:
-  - difflib
-- name: github.com/stretchr/testify
-  version: 69483b4bd14f5845b5a1e55bca19e954e827f1d0
-  subpackages:
-  - assert
-  - require
diff --git a/vendor/go.uber.org/multierr/go.mod b/vendor/go.uber.org/multierr/go.mod
new file mode 100644
index 0000000..ff8bdf9
--- /dev/null
+++ b/vendor/go.uber.org/multierr/go.mod
@@ -0,0 +1,8 @@
+module go.uber.org/multierr
+
+go 1.12
+
+require (
+	github.com/stretchr/testify v1.3.0
+	go.uber.org/atomic v1.7.0
+)
diff --git a/vendor/go.uber.org/multierr/go.sum b/vendor/go.uber.org/multierr/go.sum
new file mode 100644
index 0000000..ecfc286
--- /dev/null
+++ b/vendor/go.uber.org/multierr/go.sum
@@ -0,0 +1,11 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw=
+go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=