Updated Linux Launch Options (#65)

* Note about running via Proton or Wine

* Wine support folk would like me to be clear about how the ddraw override thing is nonstandard and not generally encouraged

* pyexec executes stuff in binaries/Win32/Mods at the moment (probably a holdover from before the filesystem changes)

* New release requires one more weird Linux workaround

Author: apocalyptech

README.md

@@ -21,7 +21,9 @@ If you are asked to overwrite any files, accept. This mod replaces (and function
 
 ### Linux (SteamPlay/Proton and Wine)
 
-PythonSDK does not yet work natively on Linux, but it seems to work well under SteamPlay/Proton and Wine.  To load properly, though, Wine needs to be told to allow `ddraw.dll` overrides.  Set the game's launch options (via `Properties -> General`) to `WINEDLLOVERRIDES="ddraw=n,b" %command%`
+PythonSDK does not yet work natively on Linux, but it seems to work well under SteamPlay/Proton and Wine.  To load properly, though, Wine needs to be told to allow `ddraw.dll` overrides.  Additionally, the latest SDK release (as of February 29, 2020) wants the main executable name to be `Borderlands2.exe`, so the common workaround of a `Launcher.exe` symlink/copy won't do the trick.  Instead, set the game's launch options (via `Properties -> General`) to:
+
+    WINEDLLOVERRIDES="ddraw=n,b" bash -c 'exec "${@/Launcher.exe/Borderlands2.exe}"' -- %command%
 
 Note that using `WINEDLLOVERRIDES` for `ddraw` isn't supported by the Wine developers, so if you experience problems with the game while using this method, please don't ask the WineHQ team for assistance.