fixup! proton: enable compiler item in dxvk hud by default

Author: loathingKernel

proton

@@ -1855,8 +1855,8 @@ class Session:
 
         if self.env.get("DXVK_HUD") == "1":
             self.env["DXVK_HUD"] = "devinfo,fps,compiler"
-        else:
-            self.env.setdefault("DXVK_HUD", "compiler")
+        elif "DXVK_HUD" in self.env:
+            append_to_env_str(self.env, "DXVK_HUD", "compiler", ",")
 
         # Enable wine-nvml by default on Nvidia (experimental)
         if utilities.is_driver_loaded({'nvidia'}):