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