[PATCH v5 0/2] MR898: scrrun: Fix bugs in FileSystemObject text-file handling

[Kevin Puetz (＠puetzk)]

Fix bugs in FileSystemObject text-file handling

OpenTextFile(...,ForWriting,True) should either create a new file,
or open and truncate an existing one

OpenTextFile(...,ForAppending,?,True) should write a BOM
if appending to an existing-but-empty file

--
  v5: scrrun: Fix FileSystemObject.OpenTextFile when writing to existing files.
      scrrun/tests: Introduce a test_file_contents helper.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/898