[gimp] libgimp, libgimpconfig: fixing gi-docgen "qualifier fragments".

[Jehan <jehanp src gnome org>]

commit 29f23c8f98edeb78bf1abd4644cc5de590678db8
Author: Jehan <jehan girinstud io>
Date:   Fri Feb 18 12:11:01 2022 +0100

    libgimp, libgimpconfig: fixing gi-docgen "qualifier fragments".
    
    Fixing these 2 warnings in the CI which end up fatal:
    
    WARNING: Invalid fragment for 'Gimp.Parasite': it should be struct
    Serializes the object properties of @config to a [class@Parasite].
                                                     ^~~~~~~~~~~~~~~~
    WARNING: Invalid fragment for 'GLib.MainLoop': it should be struct
    it has a GUI and is hanging around in a [class@GLib.MainLoop], it must call
                                            ^~~~~~~~~~~~~~~~~~~~~

 libgimp/gimpplugin.c             | 4 ++--
 libgimpconfig/gimpconfig-iface.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/libgimp/gimpplugin.c b/libgimp/gimpplugin.c
index f3ce17f1bc..7e3db21358 100644
--- a/libgimp/gimpplugin.c
+++ b/libgimp/gimpplugin.c
@@ -629,8 +629,8 @@ gimp_plug_in_get_temp_procedure (GimpPlugIn  *plug_in,
  * [method@PlugIn.extension_process] in an endless loop.
  *
  * If the plug-in cannot use [method@PlugIn.extension_process], i.e. if
- * it has a GUI and is hanging around in a [class@GLib.MainLoop], it must call
- * [method@PlugIn.extension_enable].
+ * it has a GUI and is hanging around in a [struct@GLib.MainLoop], it
+ * must call [method@PlugIn.extension_enable].
  *
  * Note that the plug-in does not need to be a
  * [const@PDBProcType.EXTENSION] to register temporary procedures.
diff --git a/libgimpconfig/gimpconfig-iface.c b/libgimpconfig/gimpconfig-iface.c
index 33847fe6eb..a537220d94 100644
--- a/libgimpconfig/gimpconfig-iface.c
+++ b/libgimpconfig/gimpconfig-iface.c
@@ -419,7 +419,7 @@ gimp_config_serialize_to_string (GimpConfig *config,
  * @parasite_flags: the new parasite's flags
  * @data:           user data passed to the serialize implementation.
  *
- * Serializes the object properties of @config to a [class@Parasite].
+ * Serializes the object properties of @config to a [struct@Parasite].
  *
  * Returns: (transfer full): the newly allocated parasite.
  *