[gnome-font-viewer] thumbnailer: add font/collection to the supported mimetypes

[Cosimo Cecchi <cosimoc src gnome org>]

commit e1c54dd8b5f7d82f87dc0bf834239713f9a0a68b
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Fri Jul 5 15:40:43 2019 -0700

    thumbnailer: add font/collection to the supported mimetypes
    
    We support collections but don't advertise the mimetype, so we fail
    to lookup the correct thumbnailer.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=788149

 src/gnome-font-viewer.thumbnailer | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/gnome-font-viewer.thumbnailer b/src/gnome-font-viewer.thumbnailer
index 5ff5d02..f3c37b8 100644
--- a/src/gnome-font-viewer.thumbnailer
+++ b/src/gnome-font-viewer.thumbnailer
@@ -1,4 +1,4 @@
 [Thumbnailer Entry]
 TryExec=gnome-thumbnail-font
 Exec=gnome-thumbnail-font --size %s %u %o
-MimeType=application/x-font-ttf;application/x-font-pcf;application/x-font-type1;application/x-font-otf;font/ttf;font/otf;
+MimeType=application/x-font-ttf;application/x-font-pcf;application/x-font-type1;application/x-font-otf;font/ttf;font/otf;font/collection;