fix linting issue

Author: lcarilla

devel/management/commands/readlinks_inotify.py

@@ -59,7 +59,7 @@ def setup_notifier(self):
             arches = Arch.objects.filter(agnostic=False)
             repos = Repo.objects.all()
 
-        arch_path_map = {arch: None for arch in arches}
+        arch_path_map = dict.fromkeys(arches)
         all_paths = set()
         total_paths = 0
         for arch in arches:

devel/management/commands/reporead_inotify.py

@@ -72,7 +72,7 @@ def setup_notifier(self):
             arches = Arch.objects.filter(agnostic=False)
             repos = Repo.objects.all()
 
-        arch_path_map = {arch: None for arch in arches}
+        arch_path_map = dict.fromkeys(arches)
         all_paths = set()
         total_paths = 0
         for arch in arches: