title: Vim airline branch not showing
body: <p>I've installed <a href="https://github.com/bling/vim-airline/" rel="nofollow noreferrer">bling/vim-airline</a> hoping I could have that cool branch name in my status bar.</p>
  
  <p><img src="https://i.stack.imgur.com/3Z1Ab.png" alt=""></p>
  
  <p>I followed the instructions on airline's repo and installed <a href="https://github.com/tpope/vim-fugitive" rel="nofollow noreferrer">tpope/vim-fugitive</a>.
  But after downloading, installing, modifying and restarting vim, I just couldn't get the branch on the status bar. Instead I've got this:</p>
  
  <p><img src="https://i.stack.imgur.com/LG4Dd.png" alt=""></p>
  
  <p>I'm suspecting something was wrong with my <code>.vimrc</code> file?</p>
  
  <p>Here is the part related to airline:</p>
  
  <pre><code>set ttimeoutlen=50
  let g:airline_theme = 'powerlineish'
  let g:airline#extensions#hunks#enabled=0
  let g:airline#extensions#branch#enabled=1
  
  if !exists('g:airline_symbols')
    let g:airline_symbols = {}
  endif
  let g:airline_symbols.space = "\ua0"
  </code></pre>
  
  <p>P.S. I'm new to vim, any advice will be greatly appreciated, thanks!</p>