gplugin/gplugin

Fix some leaks in GTK3 plugin viewer

2021-10-09, Elliott Sales de Andrade
3c0fd3c606db
Fix some leaks in GTK3 plugin viewer

Add missing free for `abi_version` and `summary`, and put frees at end of function.

Testing Done:
Compile only.

Reviewed at https://reviews.imfreedom.org/r/1009/
REVIEWBOARD_URL = "https://reviews.imfreedom.org/"
REPOSITORY = "gplugin/gplugin"
REPOSITORY_TYPE = "mercurial"
BRANCH = "default"
LAND_DEST_BRANCH = "default"
LAND_PUSH = False