title: Can't install vim-plug
body: <p>Following the instructions, I put plug.vim in autoload folder and my vimrc looks like this now:</p>
  
  <pre><code>set nocompatible
  source $VIMRUNTIME/vimrc_example.vim
  source $VIMRUNTIME/mswin.vim
  behave mswin
  
  call plug#begin('~/.vim/plugged')
  call plug#end()
  
  set diffexpr=MyDiff()
  function MyDiff()
    let opt = '-a --binary '
    if &amp;diffopt =~ 'icase' | let opt = opt . '-i ' | endif
    if &amp;diffopt =~ 'iwhite' | let opt = opt . '-b ' | endif
    let arg1 = v:fname_in
    if arg1 =~ ' ' | let arg1 = '"' . arg1 . '"' | endif
    let arg2 = v:fname_new
    if arg2 =~ ' ' | let arg2 = '"' . arg2 . '"' | endif
    let arg3 = v:fname_out
    if arg3 =~ ' ' | let arg3 = '"' . arg3 . '"' | endif
    let eq = ''
    if $VIMRUNTIME =~ ' '
      if &amp;sh =~ '\&lt;cmd'
        let cmd = '""' . $VIMRUNTIME . '\diff"'
        let eq = '"'
      else
        let cmd = substitute($VIMRUNTIME, ' ', '" ', '') . '\diff"'
      endif
    else
      let cmd = $VIMRUNTIME . '\diff'
    endif
    silent execute '!' . cmd . ' ' . opt . arg1 . ' ' . arg2 . ' &gt; ' . arg3 . eq
  endfunction
  </code></pre>
  
  <p>So I added only</p>
  
  <pre><code>call plug#begin('~/.vim/plugged')
  call plug#end()
  </code></pre>
  
  <p>On VIM start up I get</p>
  
  <pre><code>[vim-plug] `git` executable not found. vim-plug requires git.
  </code></pre>
  
  <p>Using windows 7, please help.</p>