Make the filepath shown in the UI an unicode

Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr>

pagure/templates/repo_pull_request.html

@@ -678,7 +678,7 @@
           <div class="pull-xs-left pr-changes-description"><strong>file <span class="text-success">added</span></strong></div>
         </div>
         <div class="ellipsis pr-changes-description">
-          <small>{{filepath}}</small>
+          <small>{{ filepath | unicode }}</small>
         </div>
     </a>
     {%- endmacro %}