fix truncating in defineFile()

- in the C part: enable FUSE_CAP_ATOMIC_O_TRUNC so that open() will get called with O_TRUNC in flags instead of truncate() being called separately
  - this also prevents truncate() from calling setData() with an empty string when a file is opened with O_TRUNC
- in defineFile()->open(): if O_TRUNC is used, don't call getData() but start with an empty file as if it had just been truncated
- in defineFile()->write()/truncate(): correct buffer resizing/copying

0 files changed, 0 insertions, 0 deletions