[Swan-commit] Changes to ref refs/heads/main

[Andrew Cagney]

New commits:
commit f2e71e41a08471c026528afc024c27a169467937
Author: Andrew Cagney <cagney at gnu.org>
Date:   Fri Nov 27 09:59:00 2020 -0500

    hunk: re-do *_is*() code
    
    - don't use <ctype.h> at all
    - turn into functions (let LTO do its job)
    - split hunk_char_is*() into char_is*(hunk_char())
    - add char_to*()
    - more tests