title: How to set svn:ignore with multiple values?
body: <p>Let's say I want to set the <strong>svn:ignore</strong> property for directory <strong>dir1</strong> with multiple values, <em>file1</em>, <em>file2</em>, and <em>file3</em>.
  How can I do this via command line, without using a text editor (to set the property value)?</p>