[evince] Fix typo

[Ken VanDine <kvandine src gnome org>]

commit 864a46d91f8ba8604fc40ad1b76179d13a71382f
Author: Heather Ellsworth <heather ellsworth canonical com>
Date:   Mon Sep 16 17:14:39 2019 +0200

    Fix typo

 build-aux/snap/snapcraft.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/build-aux/snap/snapcraft.yaml b/build-aux/snap/snapcraft.yaml
index 0d4a47de..476d8c1d 100644
--- a/build-aux/snap/snapcraft.yaml
+++ b/build-aux/snap/snapcraft.yaml
@@ -36,7 +36,7 @@ apps:
       - home
       - network
     desktop: usr/share/applications/org.gnome.Evince-previewer.desktop
-  evince-previewer:
+  evince-thumbnailer:
     command: usr/bin/evince-thumbnailer
     plugs:
       - gsettings