Malformed name tag - Log level should be higher

[Cruuncher]

The following log is currently set at debug level:

statsd_exporter/pkg/line/line.go

Line 124 in 58769c7

level.Debug(logger).Log("msg", "Malformed name tag", "tag", tag, "component", component)

This log is very useful for debugging missing tags in metrics. However to get it we have to set statsd-exporter at debug level logging, which also brings in the "incoming line" log which logs way too much causing issues for us.

Can we increase this log to at least info level? Debug doesn't make sense to me for such important info

[Cruuncher]

I can open the PR if the change is approved