title: why mode isn't enabled?
body: <p>I've got an emacs configuration file <code>whatever.el</code> :</p>
  
  <pre><code>(abbrev-mode +1)
  (provide 'whatever)
  </code></pre>
  
  <p>and in my <code>init.el</code> :</p>
  
  <pre><code>(require 'whatever)
  </code></pre>
  
  <p>but when i start emacs, <code>abbrev-mode</code> isn't enabled. why ?</p>
  
  <p>thank you</p>