Replace unicode chars

main.go

@@ -28,7 +28,7 @@ func newExporter(reg prometheus.Registerer) *exporter {
 	e := &exporter{
 		uptime: prometheus.NewGaugeVec(prometheus.GaugeOpts{
 			Name: "ct_log_uptime_ratio",
-			Help: "24h uptime ratio (0–1) for a CT log endpoint, sourced from gstatic.com.",
+			Help: "24h uptime ratio (0-1) for a CT log endpoint, sourced from gstatic.com.",
 		}, []string{"log_url", "endpoint"}),
 		fetchOk: prometheus.NewGauge(prometheus.GaugeOpts{
 			Name: "ct_log_uptime_fetch_success",
@@ -116,7 +116,7 @@ func main() {
 	addr     := flag.String("listen",   ":9781",                                                     "address to listen on")
 	csvURL   := flag.String("url",      "https://www.gstatic.com/ct/compliance/endpoint_uptime_24h.csv", "URL of the uptime CSV")
 	interval := flag.Duration("interval", 12*time.Hour,  "how often to fetch the CSV")
-	jitter   := flag.Duration("jitter",    5*time.Minute, "maximum ±jitter applied to the fetch interval")
+	jitter   := flag.Duration("jitter",    5*time.Minute, "maximum +/-jitter applied to the fetch interval")
 	flag.Parse()
 
 	reg := prometheus.NewRegistry()