Use the proper allocated length for g_strlcat
Use the proper allocated length for g_strlcat

Using descr->len is wrong, since the size argument to g_strlcat should
include space for the terminating null byte, while descr->len doesn't
include this.

winlinvip/feng,lscube/feng,lscube/feng,winlinvip/feng,winlinvip/feng,lscube/feng