fix bug for windows appfiles test
fix bug for windows appfiles test

[#126822483]

Signed-off-by: Difan Zhao <d4b657a67385123ddb690ebdb0d79b9c6cd38927@pivotal.io>

markstgodard/cli,fujitsu-cf/cli,simonleung8/cli,simonleung8/cli,hyenaspots/cli,markstgodard/cli,fujitsu-cf/cli,hyenaspots/cli,markstgodard/cli,fujitsu-cf/cli,simonleung8/cli,hyenaspots/cli,markstgodard/cli,hyenaspots/cli