Merge branch 'rj/ref-filter-get-head-description-leakfix' into maint-2.38

Leakfix.

* rj/ref-filter-get-head-description-leakfix:
  ref-filter.c: fix a leak in get_head_description

Author: gitster

ref-filter.c

@@ -1722,6 +1722,8 @@ char *get_head_description(void)
 	} else
 		strbuf_addstr(&desc, _("(no branch)"));
 
+	wt_status_state_free_buffers(&state);
+
 	return strbuf_detach(&desc, NULL);
 }