Fix a comment.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15110 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/pub_core_threadstate.h b/coregrind/pub_core_threadstate.h
index ba75f14..230c41d 100644
--- a/coregrind/pub_core_threadstate.h
+++ b/coregrind/pub_core_threadstate.h
@@ -42,7 +42,7 @@
 #include "pub_tool_threadstate.h"
 #include "pub_core_libcsetjmp.h"   // VG_MINIMAL_JMP_BUF
 #include "pub_core_vki.h"          // vki_sigset_t
-#include "pub_core_guest.h"        // VexGuestAMD64State etc.
+#include "pub_core_guest.h"        // VexGuestArchState
 #include "libvex.h"                // LibVEX_N_SPILL_BYTES