repo_update.py: Explicitly set UTF-8 encoding for text I/O.
repo_update.py: Explicitly set UTF-8 encoding for text I/O.

thpatch/thcrap,thpatch/thcrap,thpatch/thcrap,VBChunguk/thcrap,thpatch/thcrap,VBChunguk/thcrap,thpatch/thcrap,VBChunguk/thcrap