From 6a4afb7f8eacde9cb81202347258983908a9f7c6 Mon Sep 17 00:00:00 2001
From: Jason McVetta <jason.mcvetta@gmail.com>
Date: Mon, 9 Sep 2013 18:23:42 -0700
Subject: [PATCH] stricter regexp for Dockerfile line continuations

---
 buildfile.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/buildfile.go b/buildfile.go
index cbb6ecfcef..8ff21bf939 100644
--- a/buildfile.go
+++ b/buildfile.go
@@ -459,7 +459,7 @@ func (b *buildFile) commit(id string, autoCmd []string, comment string) error {
 }
 
 // Long lines can be split with a backslash
-var lineContinuation = regexp.MustCompile(`\s*\\.*\n`)
+var lineContinuation = regexp.MustCompile(`\s*\\\s*\n`)
 
 func (b *buildFile) Build(context io.Reader) (string, error) {
 	// FIXME: @creack any reason for using /tmp instead of ""?