[gimp/gimp-2-10] Issue #4203 - Wavelet decomposition only on RGB images

[Michael Natterer <mitch src gnome org>]

commit 93f935865f2f104d4abaabd3e9477502119e880c
Author: Cyril Richard <cyril richard42 gmail com>
Date:   Thu Jan 2 15:28:03 2020 +0100

    Issue #4203 - Wavelet decomposition only on RGB images
    
    Add GRAY* to the list of supported image types.
    
    (cherry picked from commit 38cccaac49b095707e91f8a4d5610df26285e06b)
    
    (not really a cherry-pick, but nice to see the resp. commit from
    master)

 plug-ins/common/wavelet-decompose.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/plug-ins/common/wavelet-decompose.c b/plug-ins/common/wavelet-decompose.c
index e6b196de44..4b79c35616 100644
--- a/plug-ins/common/wavelet-decompose.c
+++ b/plug-ins/common/wavelet-decompose.c
@@ -100,7 +100,7 @@ query (void)
                           "Miroslav Talasek <miroslav talasek seznam cz>",
                           "19january 2017",
                           N_("_Wavelet-decompose..."),
-                          "RGB*",
+                          "RGB*, GRAY*",
                           GIMP_PLUGIN,
                           G_N_ELEMENTS (args), 0,
                           args, NULL);