(svn r3475) - Fix: you couldn't remove an item from a list-type of config ingame from the configuration file. Whatever you did, upon restart of OpenTTD those items were still there. To fix this we initialize the first item to NULL in SaveList as it is rebuilt anyways fully.

settings.c

@@ -305,10 +305,10 @@ static bool ini_save(const char *filename, IniFile *ini)
 	f = fopen(filename, "w");
 	if (f == NULL) return false;
 
-	for(group = ini->group; group; group = group->next) {
+	for (group = ini->group; group != NULL; group = group->next) {
 		if (group->comment) fputs(group->comment, f);
 		fprintf(f, "[%s]\n", group->name);
-		for(item = group->item; item; item = item->next) {
+		for (item = group->item; item != NULL; item = item->next) {
 			if (item->comment) fputs(item->comment, f);
 			if(group->type==IGT_LIST)
 				fprintf(f, "%s\n", item->value ? item->value : "");
@@ -1057,8 +1057,9 @@ static void SaveList(IniFile *ini, const char *grpname, char **list, int len)
 	int i;
 	bool first = true;
 
-	if (!group)
-		return;
+	if (group == NULL) return;
+	group->item = NULL;
+
 	for (i = 0; i != len; i++) {
 		if (list[i] == NULL || list[i][0] == '\0') continue;