Changes since 1.36.21

• revert change that breaks compile with ffmpeg 5
• Only do the vsnprintf if the log is actually going to to happen (minor performance improvement when ffmpeg logging is enabled)
• Fix memleak when not doing passthrough
• Convert missed strftimes to dateTimeFormatter. Fixes [ #3526]
• Remove remaining locale stuff from language files

Full Changelog: 1.36.20...1.36.21