Merge pull request #1838 from jmcvetta/multiline_dockerfile

Implementation of multiline syntax for Dockerfile

utils/utils_test.go

@@ -366,7 +366,6 @@ func TestParseRelease(t *testing.T) {
 	assertParseRelease(t, "3.8.0-19-generic", &KernelVersionInfo{Kernel: 3, Major: 8, Minor: 0, Flavor: "19-generic"}, 0)
 }
 
-
 func TestDependencyGraphCircular(t *testing.T) {
 	g1 := NewDependencyGraph()
 	a := g1.NewNode("a")
@@ -421,4 +420,4 @@ func TestDependencyGraph(t *testing.T) {
 	if len(res[2]) != 1 || res[2][0] != "d" {
 		t.Fatalf("Expected [d], found %v instead", res[2])
 	}
-}
+}