Code cleanup: Replace old hashes and remove trailing spaces

Created by: zzet

I'm use gem 'pre-commit' to keep my code clean. Sometimes, after editing the code, I get a diff line, which I have not edited, but they contain trailing spaces, empty EOF lines or old style hashes. This PR contains the code without them.

spec/support/valid_commit.rb

@@ -9,7 +9,7 @@ module ValidCommit
   C_FILE_PATH = "app/models"
   C_FILES = [".gitkeep", "ability.rb", "commit.rb", "issue.rb", "key.rb", "mailer_observer.rb", "merge_request.rb", "note.rb", "project.rb", "protected_branch.rb", "repository.rb", "snippet.rb", "tree.rb", "user.rb", "users_project.rb", "web_hook.rb", "wiki.rb"]
-  BLOB_FILE = %{%h3= @key.title\n%hr\n%pre= @key.key\n.actions\n  = link_to 'Remove', @key, confirm: 'Are you sure?', method: :delete, class: \"btn danger delete-key\"\n\n\n}
+  BLOB_FILE = %{%h3= @key.title\n%hr\n%pre= @key.key\n.actions\n  = link_to 'Remove', @key, :confirm => 'Are you sure?', :method => :delete, :class => \"btn danger delete-key\"\n\n\n}
   BLOB_FILE_PATH = "app/views/keys/show.html.haml"
 end