title: Find changeset using commit message mercurial
body: <p>
  I was wondering if I can find, in mercurial, a changeset using a part of a commit message</p>
  
  <p>for example I have some commits with following messages: 
  "Test-254 modified some files" 
  "Test-256 added logs" </p>
  
  <p>And I want to find the changeset which has a commit containing Test-254 or Test-256 </p>