[gimp/gimp-2-10] libgimp: add missing gimp_plug_in_error_quark to gimp.def

[Jacob Boerema <jboerema src gnome org>]

commit 45791001b3d139dfc0a634976dd8f35325089f6f
Author: Jacob Boerema <jgboerema gmail com>
Date:   Sun Jan 30 14:28:56 2022 -0500

    libgimp: add missing gimp_plug_in_error_quark to gimp.def

 libgimp/gimp.def | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/libgimp/gimp.def b/libgimp/gimp.def
index 55ac09e384..fdeef94fd6 100644
--- a/libgimp/gimp.def
+++ b/libgimp/gimp.def
@@ -765,6 +765,7 @@ EXPORTS
        gimp_pixel_rgns_register2
        gimp_plugin_domain_register
        gimp_plugin_enable_precision
+       gimp_plug_in_error_quark
        gimp_plugin_get_pdb_error_handler
        gimp_plugin_help_register
        gimp_plugin_icon_register