Merge branch 'tests-under-sanitizers' * tests-under-sanitizers: test: fix memory leaks for https (add BEV_OPT_CLOSE_ON_FREE) test: "fix" (with a quirk) leak in ssl/bufferevent_wm (w/o defer callbacks) test: disable bufferevent/bufferevent_pair_release_lock under ASAN (too tricky) test: detect test failures if atexit handler calls _exit(!0) (sanitizers) Add LSAN suppressions (for OpenSSL temporary quirk) Add TSAN suppressions ci: run tests under sanitizers Fixes: #955