Bug#766998: patch

[ZenWalker]

Dear maintainer, this patch works perfectly, please apply this diff on 
fr-command-unarchiver.c

212,213c212,218
<    for (scan = file_list; scan; scan = scan->next)
<            fr_process_add_arg (comm->process, scan->data);
---
        for (scan = file_list; scan; scan = scan->next) {
                char *escaped;
                escaped = escape_str (scan->data, "[");
                fr_process_add_arg (comm->process, escaped);
                g_free (escaped);
        }