mc: Update to 4.8.31

mc: Update to 4.8.31

For details see:
https://midnight-commander.org/wiki/NEWS-4.8.31

"Major changes since 4.8.30

Core
    Minimal version of GLib is 2.32.0.

VFS
    fish: drop support of native FISH server and protocol. Rename VFS to shell (#4232)
    extfs;
        uc1541 extfs: update up to 3.6 version (#4511)
        s3+: port to Python3 (#4324)
    Support for LZO/LZOP compression format (#4509)

...

    Skins: add color for non-printable characters in editor (#4433)

Fixes
    FTBFS on FreeBSD with ext2fs attribute support (#4493)
    Broken stickchars (-a) mode (#4498)
    Wrong timestamp after resuming of file copy operation (#4499)
    Editor: wrong deletion of marked column (#3761)
    Diff viewer: segfault when display of line numbers is enabled (#4500)
    Tar VFS: broken handling of hard links (#4494)
    Sftp VFS: failure establishing SSH session due hashed host names in ~/.ssh/known_hosts (#4506)
    Shell VFS: incorrect file names with cyrillic or diacritic symbols (#4507)
    mc.ext.ini: incorrect description of of how multiple sections and keys with same names are processed (#4497)
    mc.ext.ini: unescaped backslash \ is treated as invalid escape sequence in glib-2.77.3 and glib-2.79 (#4502)
    mc.ext.ini: file "Makefile.zip" is handled as Makefile not as zip-arhive (#4419)"

Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>