radare/radare2 — pull request #1094 by dequis (2014-07-02 11:03:27+00:00)
Title: Add r_config_node_set_desc to fix potential null derefs in core/config.c

It's the same as r_config_desc but takes a node instead of a name.

And adapt the macros in core/config.c to use this function instead of
just doing r_config_node_set_etc()->desc.

(This is the proper fix for the issue mentioned in the comments of #1093)