Double pressing of C-s runs the quick search using previous search pattern.
Usage example:
1. Press C-s
2. Make quick search with some pattern.
3. Stop quick search with any way.
4. Press C-s. The empty search line will be shown.
5. Press C-s again. The previous pattern will be shown and will be used
in current quick search.
English and Russian man pages are updated.
Thanks Alexey Losich (E.L.K) for the initial patch.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
504bd05729