Fixing list iteration documentation
Fixing list iteration documentation

The example should use cork_dllist_{start,end} instead of
cork_dllist_{head,tail}.  (The latter returns a NULL if the list is
empty, which breaks the for loop.)

rogers0/libcork,ifduyue/libcork,tempbottle/libcork,redjack/libcork,rogers0/libcork,redjack/libcork,ifduyue/libcork,redjack/libcork,rogers0/libcork,tempbottle/libcork,tempbottle/libcork,dcreager/libcork,tempbottle/libcork,redjack/libcork,redjack/libcork,redjack/libcork,ifduyue/libcork,tempbottle/libcork,rogers0/libcork,rogers0/libcork,dcreager/libcork,ifduyue/libcork,dcreager/libcork,ifduyue/libcork,dcreager/libcork,rogers0/libcork,dcreager/libcork,tempbottle/libcork,ifduyue/libcork