Bip

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=566070

Reported by Duck

When using bip in ssl_check_mode "basic", and after using the command
"/quote bip trust ok" to accept new certificates, the program crashes.
The certificate is correctly added to the store file, and segfaults
right afterwards.

Here is the backtrace:
Program received signal SIGSEGV, Segmentation fault.
0x000000000040c5dc in write_line ()
(gdb) bt
#0 0x000000000040c5dc in write_line ()
#1 0x0000000000413734 in irc_line_write ()
#2 0x000000000040fe0a in irc_dispatch_server ()
#3 0x00000000004114ed in irc_dispatch ()
#4 0x00000000004120aa in bip_on_event ()
#5 0x0000000000412c63 in irc_main ()
#6 0x0000000000409db8 in main ()