Merge branch 'stable-3.1' of git.ispconfig.org:ispconfig/ispconfig3 into stable-3.1

Author: Till Brehm

interface/web/dns/templates/dns_dmarc_edit.htm

@@ -147,7 +147,7 @@ <h1><tmpl_var name="list_head_txt"></h1>
             <div class="form-group">
                 <label class="col-sm-2 control-label">{tmpl_var name='active_txt'}</label>
                 <div class="col-sm-3">
-					<input type="checkbox" value="1" id="active" name="active" {tmpl_var name='active'} </input>
+					<input type="checkbox" value="1" id="active" name="active" {tmpl_var name='active'} />
                 </div>
             </div>