wok diff mtpaint/stuff/mtpaint.thumbnailer @ rev 22690

updated emacs again (24.3 -> 26.3)
author: Hans-G?nter Theisgen
date: Mon Jan 20 17:02:02 2020 +0100 (2020-01-20)
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/mtpaint/stuff/mtpaint.thumbnailer	Mon Jan 20 17:02:02 2020 +0100
     1.3 @@ -0,0 +1,4 @@
     1.4 +[Thumbnailer Entry]
     1.5 +TryExec=mtpaint
     1.6 +Exec=mtpaint --cmd -file/open=%i -image/scale w=128 -file/as=%o f=png
     1.7 +MimeType=image/jpeg;image/png;