title: Determine when branch was merged into another
body: <p>I've got a small git repo with multimple branches in in</p>
  
  <p>I need to determine when and who has merged particular branch to master.
  I use command to see merged branches</p>
  
  <pre><code>git branch --merged
  </code></pre>
  
  <p>But I also need to determine when and who did this</p>
  
  <p><strong>UPDATE ON USING</strong> <code>git log --merges</code></p>
  
  <p>For example i have two branches</p>
  
  <ul>
  <li>master</li>
  <li>release/1</li>
  </ul>
  
  <p>Execution of <code>git log --merges</code> gives me</p>
  
  <pre><code>commit 430c9e85e527ab1a63693265e220a8c72ed2fd14
  Merge: c5ce3bffc 3ce4f8bff
  Author: author1
  Date:   Thu Feb 23 07:15:55 2017 +0300
  
      Merge branch 'master'
  
  commit a909cf5d0100ef1621965f1f4275bd05c1495427
  Merge: c2a2a4430 bfda36db3
  Author: author1
  Date:   Thu Feb 23 05:41:32 2017 +0300
  
      Merge branch 'feature/3'
  
  commit c5ce3bffc4bde8dc60ae264781e9c990e67daaa1
  Merge: 4107e0817 b03ef505f
  Author: author2
  Date:   Tue Feb 21 11:00:56 2017 +0300
  
      Merge branch 'release/1' of https://tfs.awesomecode.com/EpicSystems/_git/EPC into release/1
  
  commit b03ef505f177eaf82a31164a97daa1d63c4146f8
  Merge: 3f9b75bb7 0ee5e531d
  Author: author1
  Date:   Tue Feb 21 09:20:31 2017 +0300
  
      Merge branch 'release/1' of https://tfs.awesomecode.com/epicsystems/_git/EPC
  </code></pre>
  
  <p>So I do not quite undestand what the last two commits from log do.. It's not obvious which one merged release/1 into master</p>