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Hello, I'd like to display the 'target' field in the logs for easier debugging.
OLD
ts=2023-12-19T02:53:31.516Z caller=exporter.go:152 level=error msg="Error pinging mysqld" err="Error 1045 (28000): Access denied for user 'testuser'@'127.0.0.1' (using password: YES)" ts=2023-12-19T02:53:35.076Z caller=exporter.go:152 level=error msg="Error pinging mysqld" err="Error 1045 (28000): Access denied for user 'testuser'@'127.0.0.1' (using password: YES)"
NEW
ts=2023-12-19T02:53:31.516Z caller=exporter.go:152 level=error msg="Error pinging mysqld" target=1.2.3.4:3306 err="Error 1045 (28000): Access denied for user 'testuser'@'127.0.0.1' (using password: YES)" ts=2023-12-19T02:53:35.076Z caller=exporter.go:152 level=error msg="Error pinging mysqld" target=1.2.3.5:3306 err="Error 1045 (28000): Access denied for user 'testuser'@'127.0.0.1' (using password: YES)"