Move Regexp.escape(), fix formatting on tests.

app/models/repository.rb

@@ -938,11 +938,11 @@ class Repository
   end
   def search_files_by_name(query, ref)
-    safe_query = query.sub(/^\/*/, "")
+    safe_query = Regexp.escape(query.sub(/^\/*/, ""))
     return [] if empty? || safe_query.blank?
-    args = %W(ls-tree --full-tree -r #{ref || root_ref} --name-status | #{Regexp.escape(safe_query)})
+    args = %W(ls-tree --full-tree -r #{ref || root_ref} --name-status | #{safe_query})
     run_git(args).first.lines.map(&:strip)
   end

spec/models/repository_spec.rb

@@ -675,9 +675,9 @@ describe Repository do
     end
     it 'properly handles when query is only slashes' do
-       results = repository.search_files_by_name('//', 'master')
-       expect(results).to match_array([])
+      results = repository.search_files_by_name('//', 'master')
+      expect(results).to match_array([])
     end
     it 'properly handles when query is not present' do