[vpython] Fix PEP425 naming.

vpython/spec/spec_test.go

Index: vpython/spec/spec_test.go
diff --git a/vpython/spec/spec_test.go b/vpython/spec/spec_test.go
index abc17c29f85af1fac6ead54ac2469b228d1f2e66..61a8ed68059911bedd36a25a67a670c63a1ba97b 100644
--- a/vpython/spec/spec_test.go
+++ b/vpython/spec/spec_test.go
@@ -42,8 +42,8 @@ func TestNormalizeAndHash(t *testing.T) {
 					Wheel: []*vpython.Spec_Package{pkgBar, pkgBaz, pkgFoo},
 				})
 
-				So(Hash(env.Spec, &rt, ""), ShouldEqual, "7e80b8643051ce0d82bf44fb180687e988791cfd7f3da39861370f0a56fc80f8")
-				So(Hash(env.Spec, &rt, "extra"), ShouldEqual, "140a02bb88b011d4aceafb9533266288fd4b441c3bdb70494419b3ef76457f34")
+				So(Hash(env.Spec, &rt, ""), ShouldEqual, "1e32c02610b51f8c3807203fccd3e8d01d252868d52eb4ee9df135ef6533c5ae")
+				So(Hash(env.Spec, &rt, "extra"), ShouldEqual, "d047eb021f50534c050aaa10c70dc7b4a9b511fab00cf67a191b2b0805f24420")
 			})
 
 			Convey(`Will fail to normalize if there are duplicate wheels.`, func() {