Do not rely on environment to know charset of known file

When opening the dict, we know it's in UTF-8, so do not rely on the
environment.

Thanks to Ettl Martin for reporting the problem and founding the
solution.
1 file changed
tree: 522bbed6786551e648330a57cb09eb718a4c11f2
  1. data/
  2. example/
  3. codespell.py
  4. COPYING
  5. Makefile
  6. README
  7. TODO