remove trailing white-spaces from app/models/custom_field.rb.
remove trailing white-spaces from app/models/auth_source_ldap.rb.
remove trailing white-spaces from app/models/wiki_page.rb.
remove trailing white-spaces from app/models/watcher.rb.
remove trailing white-spaces from app/models/user_preference.rb.
remove trailing white-spaces from app/models/token.rb.
remove trailing white-spaces from app/models/user.rb.
remove trailing white-spaces from app/models/message.rb.
remove trailing white-spaces from app/models/issue_relation.rb.
remove trailing white-spaces from app/models/issue_status.rb.
