x11-fonts/fcft: apply upstream crashfix
$ fnott &
$ notify-send "this is the summary" "this is the body"
$ fnottctl quit
Assertion failed: (fcCacheChains[i] == NULL), function FcCacheFini, file fccache.c, line 807.
(lldb) bt
* thread #1, name = 'fnott', stop reason = signal SIGABRT
* frame #0: 0x00000008005eb30a libc.so.7`__sys_thr_kill at thr_kill.S:4
frame #1: 0x0000000800556ff4 libc.so.7`__raise(s=6) at raise.c:52:10
frame #2: 0x0000000800616be9 libc.so.7`abort at abort.c:67:8
frame #3: 0x0000000800537b91 libc.so.7`__assert(func=<unavailable>, file=<unavailable>, line=<unavailable>, failedexpr=<unavailable>) at assert.c:51:2
frame #4: 0x0000000800922b94 libfontconfig.so.1`FcCacheFini at fccache.c:807:6
frame #5: 0x000000080093eafd libfontconfig.so.1`IA__FcFini at fcinit.c:205:5
frame #6: 0x0000000800434989 libfcft.so.3`fini at fcft.c:233:5
frame #7: 0x0000000800247906 ld-elf.so.1`objlist_call_fini(list=<unavailable>, root=<unavailable>, lockstate=<unavailable>) at rtld.c:2761:4
frame #8: 0x00000008002401c9 ld-elf.so.1`rtld_exit at rtld.c:3148:5
frame #9: 0x00000008006170ae libc.so.7`__cxa_finalize(dso=<unavailable>) at atexit.c:240:5
frame #10: 0x0000000800617711 libc.so.7`exit(status=0) at exit.c:74:2
frame #11: 0x000000000020c866 fnott`_start(ap=<unavailable>, cleanup=<unavailable>) at crt1_c.c:75:2
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