gplugin/gplugin

Bump the minimum meson to 0.61.0 and clean up some warnings

2022-04-18, Gary Kramlich
55291fd09e7d
Bump the minimum meson to 0.61.0 and clean up some warnings

Testing Done:
Compiled.

Reviewed at https://reviews.imfreedom.org/r/1350/
REVIEWBOARD_URL = "https://reviews.imfreedom.org/"
REPOSITORY = "gplugin/gplugin"
REPOSITORY_TYPE = "mercurial"
BRANCH = "default"
LAND_DEST_BRANCH = "default"
LAND_PUSH = False