Fix syntax-error in multiauth

modules/multiauth/templates/selectsource.twig

@@ -12,7 +12,7 @@
             {% set name = ('src-' ~ source.source64) %}
             {% set button = ('button-' ~ source.source) %}
 	    <li class="{{ source.css_class|escape('html') }} authsource">
-            <input type="submit" name="{{ name|escape('html') }}" id="{{ button|escape('html') }}" value="{{ source.text|escape('html') }}"{%- source.source == preferred %} autofocus{% endif -%}>
+            <input type="submit" name="{{ name|escape('html') }}" id="{{ button|escape('html') }}" value="{{ source.text|escape('html') }}"{%- if source.source == preferred %} autofocus{% endif -%}>
             {% if source.help %}
               <p>{{ source.help|escape('html') }}</p>
             {% endif %}