Use proper indexes for input arguments

fix_unknown_album_and_artist_flac_file.sh

@@ -25,20 +25,14 @@ if [ -z "$2" ]
 then
 	echo "staying in current directory"
 else
-	if [ "$2" = "-l" ]
+	if [ "$1" = "-l" ]
 	then
-		if [ -z "$3" ]
-		then
-			echo "Please provide the location of the file with multiple entries to fix"
-			exit 1;
-		else
 		echo "Looping through $3"
 		while read flacfile; do
 			echo "Processing line $flacfile"
 			fix_flac_file "$flacfile"
 		done < "$3"
 		exit 0;
-		fi
 	else
 		echo "moving to $2"
 			cd "$2"