Issue #1358944 by wulff, Désiré: Fix ingroup/addtogroup syntax

core/includes/bootstrap.inc

core/includes/common.inc

core/includes/database.inc

core/includes/gettext.inc

core/includes/menu.inc

core/includes/pager.inc

core/includes/schema.inc

core/includes/theme.inc

core/includes/update.inc

core/lib/Drupal/Core/Database/Driver/mysql/Connection.php

core/lib/Drupal/Core/Database/Driver/mysql/Schema.php

core/lib/Drupal/Core/Database/Driver/pgsql/Connection.php

core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php

core/lib/Drupal/Core/Database/Driver/pgsql/Select.php

core/modules/block/block.install

core/modules/comment/comment.install

core/modules/field/field.api.php

core/modules/field/field.attach.inc

core/modules/field/field.info.inc

core/modules/field/field.module