Add some missing "_H" suffixes.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3942 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/include/pub_tool_machine.h b/include/pub_tool_machine.h
index fab2f58..e5cc395 100644
--- a/include/pub_tool_machine.h
+++ b/include/pub_tool_machine.h
@@ -28,8 +28,8 @@
    The GNU General Public License is contained in the file COPYING.
 */
 
-#ifndef __PUB_TOOL_MACHINE
-#define __PUB_TOOL_MACHINE
+#ifndef __PUB_TOOL_MACHINE_H
+#define __PUB_TOOL_MACHINE_H
 
 /* VGA_STACK_REDZONE_SZB: how many bytes below the stack pointer are validly
  * addressible? */
@@ -70,7 +70,7 @@
 // doing leak checking.
 extern void VG_(apply_to_GP_regs)(void (*f)(UWord val));
 
-#endif   // __PUB_TOOL_MACHINE
+#endif   // __PUB_TOOL_MACHINE_H
 
 /*--------------------------------------------------------------------*/
 /*--- end                                                          ---*/