[storages] Fix comments

cubicweb_s3storage/storages.py

@@ -108,7 +108,7 @@
             self.info('Temporary uploaded %s.%s (%s/%s) to S3',
                       entity.eid, attr, self.bucket, suffixed_key)
             if oldkey is not None and oldkey != key:
-                # remove unneeded old file
+                # remove unneeded old key
                 self.delay_deletion(entity, attr, oldkey)
         return binary
 
@@ -120,7 +120,7 @@
         return {}
 
     def entity_updated(self, entity, attr):
-        """an entity using this storage for attr has been updatded"""
+        """an entity using this storage for attr has been updated"""
         return self.entity_added(entity, attr)
 
     def entity_deleted(self, entity, attr):