updated for version 7.4a.025
Problem:    Get the press-Enter prompt even after using :redraw.
Solution:   Clear need_wait_return when executing :redraw.
Added tag v7-4a-025 for changeset 1b89e3f916c5
updated for version 7.4a.026
Problem:    ":diffoff" does not remove folds. (Ramel)
Solution:   Do not restore 'foldenable' when 'foldmethod' is "manual".
Added tag v7-4a-026 for changeset b3ff17862b4c