Identify why lack of access to ../help generates a segfault 11

[rogersm]

When starting guildmud and there's no ../help directory to load the help files, program segfaults.

rogersm@iMac10,1:~/Dropbox/dev/guildmud/src$ cp ./guildmud /tmp
rogersm@iMac10,1:~/Dropbox/dev/guildmud/src$ cd /tmp
rogersm@iMac10,1:/tmp$ ./guildmud
Segmentation fault: 11

Will investigate, but taking into account code is not checking for opendir(3) return code, this should not be too difficult.