gplugin/gplugin

meson: Switch join_paths to /.

2020-09-15, Elliott Sales de Andrade
4e95ad0fb9e4
meson: Switch join_paths to /.

Reviewed at https://reviews.imfreedom.org/r/119/
[branchname]
master = default
develop = develop
feature = feature/
release = release/
hotfix = hotfix/
support = support/