Call fixup_permissions even when using the helper. This means that
treef68c02b5bd4e3e95652bbc346d1480330c643167
-rwxr-xr-x 3212 0alias
-rw-r--r-- 1488 0alias.1
-rwxr-xr-x 93 0launch
-rw-r--r-- 6348 0launch.1
-rwxr-xr-x 2187 0store
-rw-r--r-- 4132 0store.1
-rw-r--r-- 26536 COPYING
-rw-r--r-- 615 MANIFEST.in
-rw-r--r-- 2115 README
drwxr-xr-x - debian
-rwxr-xr-x 616 makedeb
-rwxr-xr-x 2759 makedist
-rw-r--r-- 67 setup.cfg
-rw-r--r-- 2148 setup.py
drwxr-xr-x - tests
drwxr-xr-x - zeroinstall