make_docs: Pass the file encoding to open()

Otherwise, it will fail on Python 3 with:
"UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position
7690: ordinal not in range(128)"

We have to use io.open() instead of open(), because open() does not
accept the encoding on Python 2.

Change-Id: I77b6552491e8de01d79a26d2f146ddbd968cce49
1 file changed
tree: 21becd0104adf1e86585f442c9377819c881d14f
  1. cmake/
  2. config/
  3. data/
  4. docs/
  5. examples/
  6. include/
  7. internal/
  8. jni/
  9. scripts/
  10. .gitignore
  11. CMakeLists.txt
  12. LICENSE
  13. README.md
README.md

Ceres Solver - A non-linear least squares minimizer

Please see ceres-solver.org for more information.

WARNING - Do not make GitHub pull requests!

Ceres development happens on Gerrit, including both repository hosting and code reviews. The GitHub Repository is a continuously updated mirror which is primarily meant for issue tracking. Please see our Contributing to Ceres Guide for more details.

The upstream Gerrit repository is

https://ceres-solver.googlesource.com/ceres-solver