fix script

Signed-off-by: Anas Nashif <[email protected]>

Author: nashif

scripts/set_assignees.py

@@ -86,7 +86,7 @@ def process_manifest():
     projs_names = [name for name, rev in projs]
 
     if not projs_names:
-        return
+        return []
     areas = []
     for p in projs_names:
         areas.append(f'West project: {p}')