Fix typo in `explain` help (#1290)

cmd/crowdsec-cli/explain.go

@@ -101,7 +101,7 @@ cscli explain --dsn "file://myfile.log" --type nginx
 	}
 	cmdExplain.PersistentFlags().StringVarP(&logFile, "file", "f", "", "Log file to test")
 	cmdExplain.PersistentFlags().StringVarP(&dsn, "dsn", "d", "", "DSN to test")
-	cmdExplain.PersistentFlags().StringVarP(&logLine, "log", "l", "", "Lgg line to test")
+	cmdExplain.PersistentFlags().StringVarP(&logLine, "log", "l", "", "Log line to test")
 	cmdExplain.PersistentFlags().StringVarP(&logType, "type", "t", "", "Type of the acquisition to test")
 	cmdExplain.PersistentFlags().BoolVarP(&opts.Details, "verbose", "v", false, "Display individual changes")
 	cmdExplain.PersistentFlags().BoolVar(&opts.SkipOk, "failures", false, "Only show failed lines")