* applet: stylistic changes and some code reduction for help.
* applet: Auto-detect help gzip/zlib compression.
* db: fix chroot proc setup for scripts when in user namespace.
* db, pkg: add fallback to not needing unshare() when running as
root.
* commit: dynamic unit for installed_bytes.
* apk: fix compile when using C89.
* mkpkg: implement --xattrs[=BOOL] to disable xattr recording.
* io_url_libfetch: do not map error to zero.
* package: add F_SEAL_EXEC to memfd script.
* db: drop use of fexecve for scripts.
* commit: don't sync with --simulate.
OBS-URL: https://build.opensuse.org/package/show/system:packagemanager/apk-tools?expand=0&rev=9
