mc: Update to 4.8.30

mc: Update to 4.8.30

For details see:
http://midnight-commander.org/wiki/NEWS-4.8.30

Summary:

"Major changes since 4.8.29
Core
    Support PCRE2 as search engine (via --with-search-engine=pcre2) (#4450)
    Implement panelization buffers for both file panels (#4370)

VFS
    tar: support extended headers (including long file names and sparse files) (#1952, #2201)
    extfs helpers: replace "perl -w" with "use warnings" (MidnightCommander?/mc#174)
    extfs/patchfs: be more specific in error message (#4485)

Editor
    Add syntax highlighting:
        Jenkinsfiles (#4469)
        B language (#4470)
    Improve syntax highlighting:
        ECMAScript (MidnightCommander?/mc#172)
        ECMAScript in TypeScript? (MidnightCommander?/mc#172)
        use diff syntax highlighting for git commit messages (COMMIT_EDITMSG) (MidnightCommander?/mc#85)

Misc
    Code cleanup (#4426, #4438)
    Filehighlight:
        recognize vsix files as zip files (MidnightCommander?/mc#171)
    Skin updates:
        julia256 (#4441, #4445)

Fixes
    Usage of 'sed' in build system/makefiles is not portable (#4459, #4466)
    Unportable '$<' in Makefiles (#4460)
    FTBFS if ncurses used without --with-ncurses-includes= configure parameter (#4462)
    Ncurses library is duplicated in MCLIBS (#4463, #4465)
    FTBFS without ext2fs attributes support (#4464)
    Wrong sort order after swapping panels (#4432)
    Incorrect time delimiter in the copy/move progress window (#4437)
    Incorrect redraw of overlapped file panels (#4408)
    Subshell/Command? line prompt is empty/missing (#3121)
    Find file: relative ignore directory is applied to the start search directory (#4235)
    Diff viewer: options are not applied on second run (#4486)
    mc.ext.ini: 'Edit' command from 'Default' section is ignored (#4434)
    mc.ext.ini: .md files are not recognized as Markdown ones by extension (#4444)
    mcedit: off-by-one error in paragraph formatting (#4446)
    ftp: incomplete file listing: block and character devices, pipes, sockets are missed (#4472)
    Various typos in the source code (MidnightCommander?/mc#177, MidnightCommander?/mc#178)"

Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org>