Less version 557
Version 557 was released on 28 Mar 2020.
These are the differences between version 551 and version 557:
- Update Unicode tables.
- Treat Hangul Jamo medial vowels and final consonants as zero width.
- Display error message immediately when -o is toggled and input is not a pipe.
- Fix display bug in WIN32C version.
- Fix memory corruption when built with libtermcap.
- Support libtinfow.