https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=36792

            Bug ID: 36792
           Summary: limit POSIX imports
 Change sponsored?: ---
           Product: Koha
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P5 - low
         Component: Architecture, internals, and plumbing
          Assignee: [email protected]
          Reporter: [email protected]
        QA Contact: [email protected]
                CC: [email protected], [email protected]

A Marcel's QA patch to Bug 36552 added use POSIX; in two spots.  In
https://metacpan.org/pod/POSIX we read:

CAVEATS

Everything is exported by default (with a handful of exceptions). This is an
unfortunate backwards compatibility feature and its use is strongly
discouraged. You should either prevent the exporting (by saying use POSIX ();,
as usual) and then use fully qualified names (e.g. POSIX::SEEK_END), or give an
explicit import list. If you do neither and opt for the default (as in use
POSIX;), you will import hundreds and hundreds of symbols into your namespace.

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