unless is useful outside of single-line statements

Author: michaelficarra

documentation/index.html.erb

@@ -628,7 +628,7 @@ Expressions
       are the same as boolean <tt>true</tt>, while <tt>off</tt> and <tt>no</tt> are boolean <tt>false</tt>.
     </p>
     <p>
-      For single-line statements, <tt>unless</tt> can be used as the inverse of <tt>if</tt>.
+      <tt>unless</tt> can be used as the inverse of <tt>if</tt>.
     </p>
     <p>
       As a shortcut for <tt>this.property</tt>, you can use <tt>@property</tt>.