+2022-01-05 (National Bird Day) lttng-ust 2.12.3
+ * Fix: ust-cancelstate: include string.h for strerror
+ * Fix: lttng-ust-fd: remove lttng_ust_common_ctor call
+ * Fix: nestable pthread cancelstate
+ * Fix: abort on decrement_sem_count during concurrent tracing start and teardown
+ * fix: liblttng-ust-fd async-signal-safe close()
+ * Set git-review branch to stable-2.12
+ * fix: link benchmark with pthread
+ * Fix: liblttng-ust-ctl have dependencies on liburcu
+ * Fix: add extern "C" to two header files
+