Add filter to customize endings of trimmed content

[cabrerahector]

By default, WPP appends the ellipsis character (...) at the end of trimmed titles/excerpts. It'd be nice if there was a filter to customize that from outside the plugin. Something like:

function new_excerpt_more($more) {
    return '[...]';
}
add_filter('wpp_excerpt_more', 'new_excerpt_more');