title: git add -A is not adding all modified files in directories
body: <p>I want to add all files no matter what: whether it is deleted, created, modified, untracked, etc? I just don't want to git add <strong>ALL</strong> my files <strong>EVERY TIME</strong>. I tried <code>git add -A</code> but it is <strong>NOT</strong> adding modified files inside folders.</p>
  
  <p>Here is my initial <code>git status</code> in my project:</p>
  
  <pre><code>Rakib-MacBook-Pro:my-xcode-practice rakib$ git status
  # On branch master
  # Changes not staged for commit:
  #   (use "git add &lt;file&gt;..." to update what will be committed)
  #   (use "git checkout -- &lt;file&gt;..." to discard changes in working directory)
  #   (commit or discard the untracked or modified content in submodules)
  #
  #   modified:   BankAccount (modified content, untracked content)
  #   modified:   BuckysButtons (modified content, untracked content)
  #   modified:   multiview (modified content, untracked content)
  #   modified:   rotator (modified content, untracked content)
  #   modified:   segmentedControls (modified content, untracked content)
  #
  no changes added to commit (use "git add" and/or "git commit -a")
  </code></pre>
  
  <p>Then I put <code>git add -A</code>:</p>
  
  <pre><code>Rakib-MacBook-Pro:my-xcode-practice rakib$ git add -A
  </code></pre>
  
  <p>and then here is the new status <strong>AFTER</strong> doing <code>git add -A</code>:</p>
  
  <pre><code>Rakib-MacBook-Pro:my-xcode-practice rakib$ git status
  # On branch master
  # Changes not staged for commit:
  #   (use "git add &lt;file&gt;..." to update what will be committed)
  #   (use "git checkout -- &lt;file&gt;..." to discard changes in working directory)
  #   (commit or discard the untracked or modified content in submodules)
  #
  #   modified:   BankAccount (modified content, untracked content)
  #   modified:   BuckysButtons (modified content, untracked content)
  #   modified:   multiview (modified content, untracked content)
  #   modified:   rotator (modified content, untracked content)
  #   modified:   segmentedControls (modified content, untracked content)
  #
  no changes added to commit (use "git add" and/or "git commit -a")
  </code></pre>
  
  <p>You can see that there has been no change in the <code>git status</code>. 
  How do I solve this? </p>
  
  <p>I also tried <code>git add .</code> - it did not help</p>
  
  <p>I also tried <code>git add *</code> - it did not help</p>