Bug 1602492: Allow group csv upload display errors correctly

Allow it to work the same as htdocs/admin/users/uploadcsv.php where we
don't escape the output because we have already cleaned it and want
the <br> to work correctly

behatnotneeded

Change-Id: I9166b657646b46ce15dbafb8652ee4a2ae0e2e22
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>

htdocs/admin/groups/uploadcsv.php

@@ -241,7 +241,7 @@ function uploadcsv_validate(Pieform $form, $values) {
     }
 
     if ($errors = $csverrors->process()) {
-        $form->set_error('file', clean_html($errors));
+        $form->set_error('file', clean_html($errors), false);
         return;
     }
 

htdocs/admin/groups/uploadmemberscsv.php

@@ -177,7 +177,7 @@ function uploadcsv_validate(Pieform $form, $values) {
     }
 
     if ($errors = $csverrors->process()) {
-        $form->set_error('file', clean_html($errors));
+        $form->set_error('file', clean_html($errors), false);
         return;
     }