[PATCH v3 3/6] tr2: stop leaking "thread_name" memory

Fix a memory leak introduced in ee4512ed481 (trace2: create new
combined trace facility, 2019-02-22), we were doing a free() of other
memory allocated in tr2tls_create_self(), but not the "thread_name"
"struct strbuf".

Signed-off-by: Ævar Arnfjörð Bjarmason <redacted>
---
 trace2/tr2_tls.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/trace2/tr2_tls.c b/trace2/tr2_tls.c
index 067c23755f..7da94aba52 100644
--- a/trace2/tr2_tls.c
+++ b/trace2/tr2_tls.c

@@ -95,6 +95,7 @@ void tr2tls_unset_self(void)
 
 	pthread_setspecific(tr2tls_key, NULL);
 
+	strbuf_release(&ctx->thread_name);
 	free(ctx->array_us_start);
 	free(ctx);
 }

-- 
2.33.0.736.g68690aaec9a