[glib: 4/4] Merge branch '2227-more-nullables-more' into 'master'

[Emmanuele Bassi <ebassi src gnome org>]

commit adaca1413332fdd31909037e1e9fd6c07d1b1e75
Merge: 819409cf9 181a12c39
Author: Emmanuele Bassi <ebassi gmail com>
Date:   Sat Dec 12 00:04:31 2020 +0000

    Merge branch '2227-more-nullables-more' into 'master'
    
    gobject: More missing return value annotations
    
    See merge request GNOME/glib!1802

 gobject/genums.c  | 12 ++++++------
 gobject/gparam.c  | 34 +++++++++++++++++-----------------
 gobject/gsignal.c | 53 +++++++++++++++++++++++++++--------------------------
 3 files changed, 50 insertions(+), 49 deletions(-)
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