When resolving conflicts, you only need to edit the $MERGED file. Put
the cursor automatically into its window for vimdiff and gvimdiff to
avoid doing <C-w>l every time.
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Tested-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>