Adds the Rubocop ReturnNil cop

This style change enforces `return if ...` instead of
`return nil if ...` to save maintainers a few minor review points

1 files changed, 2 insertions, 2 deletions

diff --git a/app/models/repository.rb b/app/models/repository.rb
index cd761a29618..851175a61b7 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -79,7 +79,7 @@ class Repository
   end
 
   def raw_repository
-    return nil unless full_path
+    return unless full_path
 
     @raw_repository ||= initialize_raw_repository
   end
@@ -103,7 +103,7 @@ class Repository
   end
 
   def commit(ref = nil)
-    return nil unless exists?
+    return unless exists?
     return ref if ref.is_a?(::Commit)
 
     find_commit(ref || root_ref)