From 038dcc19587525963e659223fc8aed9a7f157ec4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benjamin=20N=C3=B8rgaard?= <b@noergaard.dk>
Date: Wed, 3 Oct 2018 14:23:53 +0200
Subject: [PATCH] use strings.SplitN to avoid the join

---
 pkg/dockerfile/buildargs.go | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/pkg/dockerfile/buildargs.go b/pkg/dockerfile/buildargs.go
index 4f472e782..b929528ef 100644
--- a/pkg/dockerfile/buildargs.go
+++ b/pkg/dockerfile/buildargs.go
@@ -29,12 +29,11 @@ type BuildArgs struct {
 func NewBuildArgs(args []string) *BuildArgs {
 	argsFromOptions := make(map[string]*string)
 	for _, a := range args {
-		s := strings.Split(a, "=")
+		s := strings.SplitN(a, "=", 2)
 		if len(s) == 1 {
 			argsFromOptions[s[0]] = nil
 		} else {
-			val := strings.Join(s[1:], "=")
-			argsFromOptions[s[0]] = &val
+			argsFromOptions[s[0]] = &s[1]
 		}
 	}
 	return &BuildArgs{