if v:version >= 703
    Plug 'vim-scripts/Gundo', { 'on': 'GundoToggle' }
endif

let g:gundo_width = 60
let g:gundo_preview_height = 30
let g:gundo_right = 1

nnoremap <silent> <leader>gu :GundoToggle<CR>
vnoremap <silent> <leader>gu <ESC>:GundoToggle<CR>