ctest_memcheck: do not add detect_leaks=1 to ASAN_OPTIONS

Help/release/dev/ctest_memcheck-leak_sanitizer.rst

@@ -4,6 +4,11 @@ ctest_memcheck-leak_sanitizer
 * The :command:`ctest_memcheck` command learned to support ``LeakSanitizer``
   independently from ``AddressSanitizer``.
 
+* The :command:`ctest_memcheck` command no longer automatically adds
+  ``leak_check=1`` to the options used by ``AddressSanitizer``. The default
+  behavior of ``AddressSanitizer`` is to run `LeakSanitizer` to check leaks
+  unless ``leak_check=0``.
+
 * The :command:`ctest_memcheck` command learned to read the location of
   suppressions files for sanitizers from the
   :variable:`CTEST_MEMORYCHECK_SUPPRESSIONS_FILE` variable.

Source/CTest/cmCTestMemCheckHandler.cxx

@@ -618,7 +618,6 @@ bool cmCTestMemCheckHandler::InitializeMemoryChecking()
       if (this->MemoryTesterStyle ==
           cmCTestMemCheckHandler::ADDRESS_SANITIZER) {
         envVar = "ASAN_OPTIONS";
-        extraOptions += ":detect_leaks=1";
       } else if (this->MemoryTesterStyle ==
                  cmCTestMemCheckHandler::LEAK_SANITIZER) {
         envVar = "LSAN_OPTIONS";