Run by Alpine's desktop-file-utils.trigger instead

diff -Naur a/setup.py b/setup.py
--- a/setup.py	2019-01-02 08:01:06.000000000 +0000
+++ b/setup.py	2019-03-20 21:12:53.570596428 +0000
@@ -205,4 +205,3 @@
           },
        distclass=CherryTreeDist
     )
-    subprocess.call("update-desktop-database")