Fix panix when using backwards compatible flags

Julien Pivotto · Julien Pivotto · commit cbf30d07446e · 2021-03-15T14:35:03.000+01:00
Signed-off-by: Julien Pivotto &lt;roidelapluie@inuits.eu&gt;
diff --git a/collector/systemd_linux.go b/collector/systemd_linux.go
@@ -131,7 +131,7 @@ func NewSystemdCollector(logger log.Logger) (Collector, error) {
 		}
 	}
 	if *oldUnitInclude != "" {
-		if *unitInclude == "" {
+		if *unitInclude == ".+" { // .+ is the default value for collector.systemd.unit-include.
 			level.Warn(logger).Log("msg", "--collector.systemd.unit-whitelist is DEPRECATED and will be removed in 2.0.0, use --collector.systemd.unit-include")
 			*unitInclude = *oldUnitInclude
 		} else {

Original file line number	Diff line number	Diff line change
`@@ -131,7 +131,7 @@ func NewSystemdCollector(logger log.Logger) (Collector, error) {`
`131`	`131`	`}`
`132`	`132`	`}`
`133`	`133`	`if *oldUnitInclude != "" {`
`134`		`- if *unitInclude == "" {`
	`134`	`+ if *unitInclude == ".+" { // .+ is the default value for collector.systemd.unit-include.`
`135`	`135`	`level.Warn(logger).Log("msg", "--collector.systemd.unit-whitelist is DEPRECATED and will be removed in 2.0.0, use --collector.systemd.unit-include")`
`136`	`136`	`unitInclude = oldUnitInclude`
`137`	`137`	`} else {`