Update Golang 1.12.15

full diff: golang/go@go1.12.14...go1.12.15

go1.12.15 (released 2020/01/09) includes fixes to the runtime and the net/http
package. See the Go 1.12.15 milestone on the issue tracker for details:

https://github.com/golang/go/issues?q=milestone%3AGo1.12.15+label%3ACherryPickApproved

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 84c6b08cf6a100e50bcf90fada8d6b79fab5cfef)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 3694e78a56e69f221c1e1e0b18d1bdacfe5b4633
Component: cli

Author: thaJeztah

components/cli/appveyor.yml

@@ -4,7 +4,7 @@ clone_folder: c:\gopath\src\github.com\docker\cli
 
 environment:
   GOPATH: c:\gopath
-  GOVERSION: 1.12.14
+  GOVERSION: 1.12.15
   DEPVERSION: v0.4.1
 
 install:

components/cli/dockerfiles/Dockerfile.binary-native

@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.12.14
+ARG GO_VERSION=1.12.15
 
 FROM    golang:${GO_VERSION}-alpine
 

components/cli/dockerfiles/Dockerfile.cross

@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.12.14
+ARG GO_VERSION=1.12.15
 
 FROM	dockercore/golang-cross:${GO_VERSION}
 ENV     DISABLE_WARN_OUTSIDE_CONTAINER=1

components/cli/dockerfiles/Dockerfile.dev

@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.12.14
+ARG GO_VERSION=1.12.15
 
 FROM    golang:${GO_VERSION}-alpine
 

components/cli/dockerfiles/Dockerfile.e2e

@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.12.14
+ARG GO_VERSION=1.12.15
 
 # Use Debian based image as docker-compose requires glibc.
 FROM golang:${GO_VERSION}

components/cli/dockerfiles/Dockerfile.lint

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1.1.3-experimental
 
-ARG GO_VERSION=1.12.14
+ARG GO_VERSION=1.12.15
 ARG GOLANGCI_LINTER_SHA="v1.21.0"
 
 FROM    golang:${GO_VERSION}-alpine AS build