[rpms/perl-File-Listing] PR #3: Update license to SPDX format

[Michal Josef Špaček]

mspacek opened a new pull-request against the project: `perl-File-Listing` that you are
following:
``
Update license to SPDX format
``

To reply, visit the link below
https://src.fedoraproject.org/rpms/perl-File-Listing/pull-request/3