Squashed 'vim/.vim/bundle/vim-fugitive/' changes from 51cdb1b..17393f5

17393f5 Don't blow up on type checking empty buffers

git-subtree-dir: vim/.vim/bundle/vim-fugitive
git-subtree-split: 17393f552e3a51dd010f403073592bf0a6170098
Merge commit '8b61a6d34ef9cd77e051c197f0d85173bcb11534'