Use strings.ReplaceAll() rather than strings.Replace() with -1

[jessp01]

Hello,

Well done on creating this exporter.

Also, added a pre-commit hook. To install it:

go install github.com/go-critic/go-critic/cmd/gocritic@latest go install golang.org/x/tools/cmd/goimports@latest go install golang.org/x/lint/golint@latest
go install github.com/gordonklaus/ineffassign@latest pip install pre-commit
pre-commit install

It will then run on every git commit invocation. To run manually on all files, invoke: pre-commit run --all-files

Following the merge of this pull, the only issue that will be reported is:

./main.go:85:3: exitAfterDefer: os.Exit will exit, and defer cancel() will not run

Please see discussion in go-critic/go-critic#1022 for ways to address this.

Cheers,