gio: make g_task_get_cancellable return value (nullable) (!2899) · Merge requests · GNOME / GLib · GitLab

Merged Jason Francis requested to merge jf/glib:task_get_cancellable_nullable into main Sep 16, 2022

To match the constructor: https://gitlab.gnome.org/GNOME/glib/-/blob/d37beda25e5d7b93c06e214f967b5cb5254e535f/gio/gtask.c#L726