Fix typo

Author: andyone

redis-latency-monitor.go

@@ -489,7 +489,7 @@ func showUsage() {
 func genUsage() *usage.Info {
 	info := usage.NewInfo("")
 
-	info.AddSpoiler("Utility show PING command latency or connection latency in milliseconds (one thousandth of a second).")
+	info.AddSpoiler("Utility shows PING command latency or connection latency in milliseconds (one thousandth of a second).")
 
 	info.AddOption(OPT_HOST, "Server hostname {s-}(127.0.0.1 by default){!}", "ip/host")
 	info.AddOption(OPT_PORT, "Server port {s-}(6379 by default){!}", "port")