Fix spacing issues after removing lines

Rubocop was complaining about a Layout/ExtraSpacing in a couple of
places.

These issues weren't detected by Pronto because they didn't affect lines
changed in the pull request. These lines were fine until we removed the
lines next to them in commits 4b42a68b6 and 00f0c4410.

spec/models/abilities/common_spec.rb

@@ -289,7 +289,7 @@ describe Abilities::Common do
 
     before { user.update(verified_at: Time.current) }
 
-    it { should be_able_to(:vote, Proposal)          }
+    it { should be_able_to(:vote, Proposal) }
 
     it { should     be_able_to(:new, DirectMessage)            }
     it { should     be_able_to(:create, DirectMessage)         }