Add timestamp for the posix log
Update log for the event group debugging
## Marking lists
- [x] I have read the [Contributing Guidelines](https://github.com/SmartThingsCommunity/st-device-sdk-c/blob/master/CONTRIBUTING.md).
- [x] I have read the [Samsung Individual CLA](https://github.com/SmartThingsCommunity/st-device-sdk-c/blob/master/doc/SAMSUNGCLA.docx) and agree with it
* We (SmartThings SDK team) may ask you to sign it for larger changes. In this case, once we receive it, we'll be able to accept your pull requests according to relevant laws.
- I submitted this PR against the correct branch:
- [x] This pull-request is based on the latest [develop](https://github.com/SmartThingsCommunity/st-device-sdk-c/tree/develop) branch.
- [x] I have ensured local tests pass about my code changes.
## License
Your contribution will be licensed under the [Apache License Ver2.0](https://github.com/SmartThingsCommunity/st-device-sdk-c/blob/master/LICENSE).
Kwang-Hui
commented
3 years ago
Add timestamp for the posix log Update log for the event group debugging
## Marking lists - [x] I have read the [Contributing Guidelines](https://github.com/SmartThingsCommunity/st-device-sdk-c/blob/master/CONTRIBUTING.md). - [x] I have read the [Samsung Individual CLA](https://github.com/SmartThingsCommunity/st-device-sdk-c/blob/master/doc/SAMSUNGCLA.docx) and agree with it * We (SmartThings SDK team) may ask you to sign it for larger changes. In this case, once we receive it, we'll be able to accept your pull requests according to relevant laws. - I submitted this PR against the correct branch: - [x] This pull-request is based on the latest [develop](https://github.com/SmartThingsCommunity/st-device-sdk-c/tree/develop) branch. - [x] I have ensured local tests pass about my code changes. ## License Your contribution will be licensed under the [Apache License Ver2.0](https://github.com/SmartThingsCommunity/st-device-sdk-c/blob/master/LICENSE).