Suppress false reports on StackWalk64 and leaks below RtlInitializeCriticalSectionAndSpinCount

tools/valgrind/drmemory/suppressions.txt

Index: tools/valgrind/drmemory/suppressions.txt
===================================================================
--- tools/valgrind/drmemory/suppressions.txt	(revision 98422)
+++ tools/valgrind/drmemory/suppressions.txt	(working copy)
@@ -374,6 +374,11 @@
 ...
 WINMM.dll!wave*GetNumDevs
 
+# http://code.google.com/p/drmemory/issues/detail?id=466
+LEAK
+ntdll.dll!RtlRunOnceBeginInitialize
+ntdll.dll!RtlInitializeCriticalSectionAndSpinCount
+
 # http://code.google.com/p/drmemory/issues/detail?id=471
 UNINITIALIZED READ
 *!media::AudioRendererAlgorithmOLA::Crossfade<unsigned char>
@@ -480,6 +485,18 @@
 *!views::TooltipManagerWin::Init
 *!views::TooltipManagerWin::TooltipManagerWin
 
+# http://code.google.com/p/drmemory/issues/detail?id=567
+UNINITIALIZED READ
+dbghelp.dll!*
+...
+dbghelp.dll!StackWalk64
+
+LEAK
+*!*
+dbghelp.dll!*
+...
+dbghelp.dll!StackWalk64
+
 ############################
 # TODO(timurrrr): investigate these
 UNINITIALIZED READ