Adam Nemet 386cd3dd6b opt-viewer: fix HtmlFormatter encoding
Summary: Small fix to HtmlFormatter, defaults to ascii encoding, so utf-8 output may get `UnicodeEncodeError: 'ascii' codec can't encode character ... ordinal not in range(128)` during write.

Patch by Brian Cain!

Reviewers: anemet, fhahn

Reviewed By: anemet

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D29802

llvm-svn: 294710
2017-02-10 04:50:18 +00:00
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