Fix minor error

[MoGuGuai-hzr]

Reading an file named "" will raise the IsNotExist error, so the conditional statement is unnecessary in pkg/config/config.go

The result should match whether the pattern is . or ./.

Small improvement.

[wu-sheng]

Reading an file named "" will raise the IsNotExist error, so the conditional statement is unnecessary in pkg/config/config.go

The result should match whether the pattern is . or ./.

Small improvement.

Thanks for the feedback, where are you going to use SkyWalking-eye tool?

[MoGuGuai-hzr]

Reading an file named "" will raise the IsNotExist error, so the conditional statement is unnecessary in pkg/config/config.go
The result should match whether the pattern is . or ./.
Small improvement.

Thanks for the feedback, where are you going to use SkyWalking-eye tool?

Yes, i will. And i am a student participating Summer 2021 of Open Source Promotion Plan.

[kezhenxu94]

Thank you @MoGuGuai-hzr very much 🙇🏻 nice catches!