tests: Fix logout test on Windows

The macOS/Linux output when logging out from a registry that you're not
logged into is different to that of Windows. As the login test doesn't
really test if the registry login works, the test now just checks that
the command is properly parsed.

Signed-off-by: Christopher Crone <[email protected]>

tests/e2e/e2e_test.go

@@ -134,7 +134,7 @@ func (s *E2eSuite) TestClassicLogin() {
 	Expect(output).To(ContainSubstring("Cannot perform an interactive login from a non TTY device"))
 	Expect(err).NotTo(BeNil())
 	output, err = s.NewDockerCommand("logout", "someregistry.docker.io").Exec()
-	Expect(output).To(ContainSubstring("Removing login credentials for someregistry.docker.io"))
+	Expect(output).To(ContainSubstring("someregistry.docker.io"))
 	Expect(err).To(BeNil())
 }