Drop extra spaces.

dgi_fixity.services.yml

@@ -1,7 +1,7 @@
 services:
   logger.channel.dgi_fixity:
     parent: logger.channel_base
-    arguments: [ 'dgi_fixity' ]
+    arguments: ['dgi_fixity']
   dgi_fixity.fixity_check:
     class: Drupal\dgi_fixity\FixityCheckService
     arguments: ['@string_translation', '@config.factory', '@entity_type.manager', '@datetime.time', '@logger.channel.dgi_fixity', '@filehash']