[vpython] Fix PEP425 naming.

vpython/application/subcommand_verify.go

Index: vpython/application/subcommand_verify.go
diff --git a/vpython/application/subcommand_verify.go b/vpython/application/subcommand_verify.go
index b9c3e43abe278c302a94f8fbe4fc85594c428e78..7131d4bb6482704b2db4fab81b1a7f885914659e 100644
--- a/vpython/application/subcommand_verify.go
+++ b/vpython/application/subcommand_verify.go
@@ -54,7 +54,7 @@ func (cr *verifyCommandRun) Run(app subcommands.Application, args []string, env
 
 		// Run our Verification generator and verify each generated environment.
 		if a.WithVerificationConfig != nil {
-			err := a.WithVerificationConfig(c, func(cfg Config, verificationScenarios []*vpython.Pep425Tag) error {
+			err := a.WithVerificationConfig(c, func(cfg Config, verificationScenarios []*vpython.PEP425Tag) error {
 				if len(s.VerifyPep425Tag) > 0 {
 					verificationScenarios = s.VerifyPep425Tag
 				}
@@ -67,7 +67,7 @@ func (cr *verifyCommandRun) Run(app subcommands.Application, args []string, env
 					// Create a verification environment to pass to our package loader.
 					e := vpython.Environment{
 						Spec:      s.Clone(),
-						Pep425Tag: []*vpython.Pep425Tag{vs},
+						Pep425Tag: []*vpython.PEP425Tag{vs},
 					}
 
 					if err := cfg.PackageLoader.Resolve(c, &e); err != nil {