エラーメッセージ
vimproc's DLL:"$HOME/.dotfiles/.vim/bundle/vimproc/autoload/vimproc_linux64.so" is not found. Please read :help vimproc and make it.
対処方法
vimproc_linux64_no_found_handling.sh
% cd $HOME/.dotfiles/.vim/bundle/vimproc/
% make
% ls -la $HOME/.dotfiles/.vim/bundle/vimproc/autoload/vimproc_linux64.so
リファレンス
https://github.com/Shougo/vimproc.vim/issues/147