SetIfNotExist 返回值问题

[tiansin]

如果将过期时间设置为0, 调用setnx后不管是否成功都会返回false

gf/os/gcache/gcache_adapter_redis.go

Line 131 in 4553f90

if v.Int() > 0 && duration > 0 {

[github-actions]

Hello @tiansin. We like your proposal/feedback and would appreciate a contribution via a Pull Request by you or another community member. We thank you in advance for your contribution and are looking forward to reviewing it!
你好 @tiansin。我们喜欢您的提案/反馈，并希望您或其他社区成员通过拉取请求做出贡献。我们提前感谢您的贡献，并期待对其进行审查。

[gqcn]

#2432