[vpython] Fix PEP425 naming.

vpython/spec/spec_test.go

 // Copyright 2017 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 package spec
 
 import (
         "testing"
 
         "github.com/luci/luci-go/vpython/api/vpython"
@@ skipping 24 matching lines @@
                 Convey(`With a non-nil spec`, func() {
                         env.Spec = &vpython.Spec{}
 
                         Convey(`Will normalize to sorted order.`, func() {
                                 env.Spec.Wheel = []*vpython.Spec_Package{pkgFoo, pkgBar, pkgBaz}
                                 So(NormalizeEnvironment(&env), ShouldBeNil)
                                 So(env.Spec, ShouldResemble, &vpython.Spec{
                                         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() {
                                 env.Spec.Wheel = []*vpython.Spec_Package{pkgFoo, pkgFoo, pkgBar, pkgBaz}
                                 So(NormalizeEnvironment(&env), ShouldErrLike, "duplicate spec entries")
 
                                 // Even if the versions differ.
                                 fooClone := *pkgFoo
                                 fooClone.Version = "other"
                                 env.Spec.Wheel = []*vpython.Spec_Package{pkgFoo, &fooClone, pkgBar, pkgBaz}
                                 So(NormalizeEnvironment(&env), ShouldErrLike, "duplicate spec entries")
                         })
                 })
         })
 }