you don't have to go to the source in the latest version, its a configuration option, you just gotta configure the configuration

Indeed, -Ddefault_inc_excludes_dot does it for me with latest devel release (perl-5.25.10) on Ubuntu.
The test suite passed all tests.

As Corion has already indicated, you probably won't have to provide that config option with 5.26.0.

Cheers,
Rob