Update to 2.98

Upstream changes:
2.98        2018-04-21
    * Remove old author-only test scripts.
        - https://rt.cpan.org/Ticket/Display.html?id=125161
        - Thanks to SREZIC for the report.

2.97        2018-04-21
    * Apply pull-request to implement -php_compat
        - https://github.com/shlomif/perl-Config-IniFiles/pull/3
        - https://rt.cpan.org/Ticket/Display.html?id=102339
        - Thanks to @Sadrak !

(wen)