Use format string in log.Fatalf for error messages

[mahmut-Abi]

• Changed log.Fatalf(err.Error()) to log.Fatalf("%s", err.Error())

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[cdrage]

log.Fatalf ( “% s ” , err.Error ( ) ) It is better to replace with "log.Fatal". Or complete the newline character "%s\n".

Sorry for the long day. I agree with @LJTian

[cdrage]

Closing for now! Thanks for the PR.