Both variants should work:
 apk --version
 apk <applet> --version

chown will reset the suid bit so we need to set it again.

Otherwise installed db load fails due to internal reasons. This would
cause a lot of other funny stuff happen.

Ignore /etc/apk/repositories, so additional repositories that depend
on other repositories need to have explicit --repository reference on
command line when generating the index (to avoid warnings).

This was broke on --initdb addition to add applet since apk_db_create
changes the working directory.

Used to be so in the really old days of apk.

also introduce apk_verbosity. --quiet reduce verbosity and --verbose
increases it.

Default verbosity is 1.

this allows non-root users to query the database.

But we dont bother try create all subdirs (i.e mkdir -p ...)

Currently only implement --backup to get list of (config) files in
protected directories to backup.

This also fixes a database corruption bug in database.c.

In quiet mode e.g. "apk info -q -W <file list>" a list of dependencies
suitable for .PKGINFO is output in one line.

Was broken by earlier ROOT environment commit.

dependencies are separated with single space rather than ', '.
makes db file slightly easier to parse from a shell script which
might be handy.