sh: comment tidying for sh64->sh migration.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/include/asm-sh/string_64.h b/include/asm-sh/string_64.h
index 8a73573..aa1fef2 100644
--- a/include/asm-sh/string_64.h
+++ b/include/asm-sh/string_64.h
@@ -1,21 +1,17 @@
-#ifndef __ASM_SH64_STRING_H
-#define __ASM_SH64_STRING_H
+#ifndef __ASM_SH_STRING_64_H
+#define __ASM_SH_STRING_64_H
 
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * include/asm-sh64/string.h
+ * include/asm-sh/string_64.h
  *
  * Copyright (C) 2000, 2001  Paolo Alberelli
  *
- * Empty on purpose. ARCH SH64 ASM libs are out of the current project scope.
- *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
 
 #define __HAVE_ARCH_MEMCPY
-
 extern void *memcpy(void *dest, const void *src, size_t count);
 
-#endif
+#endif /* __ASM_SH_STRING_64_H */