Comment 0 for bug 1869622

Apart from fixes for:

https://bugs.launchpad.net/ubuntu/+source/corosync/+bug/1437359
https://bugs.launchpad.net/ubuntu/+source/corosync/+bug/1677684

This bug will also backport/cherrypick the following post release fixes:

-> c631951e icmap: icmap_init_r() leaks if trie_create() fails = coverity fix
-> ca320bea votequorum: set wfa status only on startup = fix for corner case
-> 5f543465 quorumtool: exit on invalid expected votes = fix
-> 0c16442f votequorum: Change check of expected_votes = fix
-> 8ce65bf9 votequorum: Reflect runtime change of 2Node to WFA = fix
-> 89b0d62f stats: Check return code of stats_map_get = fix
-> 56ee8503 quorumtool: Assert copied string length = assert (better support)
-> 1fb095b0 notifyd: Check cmap_track_add result = assert (better support)
-> 8ff7760c cmapctl: Free bin_value on error (fix)
-> 35c312f8 votequorum: Assert copied strings length = assert (better support)
-> 29109683 totemknet: Assert strcpy length assert (better support)
-> 0c118d8f totemknet: Check result of fcntl O_NONBLOCK call
-> a24cbad5 totemconfig: Initialize warnings variable = build fix
-> 74eed54a sync: Assert sync_callbacks.name length = assert (better support)
-> 380b744e totemknet: Don't mix corosync and knet error codes = fix
-> 624b6a47 stats: Assert value_len when value is needed = assert (bet support)
-> 09f6d34a logconfig: Remove double free of value = fix
-> efe48120 totemconfig: Free leaks found by coverity = fix