zeromq/czmq — pull request #850 by miska (2014-12-08 13:56:33+00:00)
Title: Problem: zlist_destroy crashing when using push and autofree

zlist_push actually contrary to the documentation doesn't do strdup and
therefore when destroying zlist which had some elements pushed in,
program crashes with double free during purging of items.

Solution: Add strdup where it belongs.