Minor tweaks + Update changelog

changelog.txt

@@ -3,4 +3,4 @@ and only contains the latest changes.
 Its purpose is to be shown in Olympus when updating.
 
 #changelog#
-∙ Fixed Olympus not starting up on Linux if installed using the previous stable
+∙ Added the ground work for the future Flatpak package

sharp/CmdLaunch.cs

@@ -69,7 +69,7 @@ public override string Run(string root, string args, bool force) {
             // or string.Equals(Environment.GetEnvironmentVariable("container"), "flatpak");
             if (File.Exists("/.flatpak-info")) {
             	if (!string.IsNullOrEmpty(args))
-                    game.StartInfo.Arguments = string.Join(" ", game.StartInfo.FileName, args);
+                    game.StartInfo.Arguments = string.Join(" ", "\"" + game.StartInfo.FileName + "\"", args);
                 else
                     game.StartInfo.Arguments = game.StartInfo.FileName;
                 game.StartInfo.FileName = Path.Combine(Program.RootDirectory, "flatpak-wrapper");

src/finder.lua

@@ -311,7 +311,12 @@ function finder.findLegendaryRoot()
 
     -- As of the time of writing this, Legendary is only supported for Windows and Linux.
     -- It follows XDG_CONFIG_HOME and ~/.config/legendary on all platforms.
-    local root = fs.joinpath(getLinuxConfigDir() or fs.joinpath(userOS == "Windows" and sharp.getEnv("USERPROFILE"):result(), ".config"), "legendary")
+    local root = fs.joinpath(
+        userOS == "Windows"
+            and fs.joinpath(sharp.getEnv("USERPROFILE"):result(), ".config")
+            or getLinuxConfigDir(),
+        "legendary"
+    )
 
     if root then
         local rootReal = fs.isDirectory(root)