gplugin/gplugin

Make the perl5 loader's name match the format of the lua and python loaders

2021-12-06, Gary Kramlich
28981a66ff9d
Make the perl5 loader's name match the format of the lua and python loaders

Testing Done:
Ran the gtk4 viewer and verified they matched.

Reviewed at https://reviews.imfreedom.org/r/1151/
EionRobb <> EionRobb <eion@robbmob.com>
ivanhoe <107501-ivanhoe@users.noreply.gitlab.com> ivanhoe <ivanhoe@fiscari.de>
Richard Laager <rlaager@pidgin.im> <rlaager@wiktel.com>