use propper logger

internal/gamelist.go

@@ -3,6 +3,7 @@ package oplcli
 import (
 	"bufio"
 	"fmt"
+	"log/slog"
 	"os"
 	"strings"
 )
@@ -16,15 +17,16 @@ func loadGamelist(filepath string) (map[string]string, error) {
 
 	gameList := make(map[string]string)
 
+	lineNum := 0
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
 		line := scanner.Text()
+		lineNum++
 
 		substrings := strings.SplitN(line, " ", 2)
 
 		if len(substrings) != 2 {
-			// TODO: something in the gamelist file is not formatted right
-			fmt.Printf("Malformed: %s\n", line)
+			slog.Warn("Line in gamelist is malformed", "line", lineNum)
 			continue
 		}