fix bug in visual mode
fix bug in visual mode

1995eaton/chromium-vim,h43z/chromium-vim,1995eaton/chromium-vim,zchee/chromium-vim,aplaice/chromium-vim,h43z/chromium-vim,zchee/chromium-vim,1995eaton/chromium-vim,zchee/chromium-vim,aplaice/chromium-vim,1995eaton/chromium-vim,h43z/chromium-vim,aplaice/chromium-vim,h43z/chromium-vim,aplaice/chromium-vim,zchee/chromium-vim