ref: 0fd8a9a13db2c006b4b5f3ab5c6a4532a1fb1d3b dir: /sys/src/cmd/python/Doc/tools/fix_libaux.sed/
#! /bin/sed -f s/{\\tt \\hackscore {}\\hackscore {}/\\sectcode{__/ s/\\hackscore {}\\hackscore {}/__/