Merge topic 'memory_check_sanitizer_options_docs'

4426ddda Help: Clarify memory check sanitizer option behavior for `log_path`

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Ben Boeckel <ben.boeckel@kitware.com>
Merge-request: !5699

Help/variable/CTEST_MEMORYCHECK_SANITIZER_OPTIONS.rst

@@ -5,3 +5,8 @@ CTEST_MEMORYCHECK_SANITIZER_OPTIONS
 
 Specify the CTest ``MemoryCheckSanitizerOptions`` setting
 in a :manual:`ctest(1)` dashboard client script.
+
+CTest prepends correct sanitizer options ``*_OPTIONS``
+environment variable to executed command. CTests adds
+its own ``log_path`` to sanitizer options, don't provide your
+own ``log_path``.