[PATCH] x86_64: coding style and whitespace fixups

Remove some of the unnecessary differences between arch/i386 and
arch/x86_64.  This patch fixes more whitespace issues, some miscellaneous
typos, a wrong URL and a factually incorrect statement about the current
boot sector code.

Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/i386/boot/edd.S

@@ -6,7 +6,7 @@
  *   projects 1572D, 1484D, 1386D, 1226DT
  * disk signature read by Matt Domsch <Matt_Domsch@dell.com>
  *	and Andrew Wilks <Andrew_Wilks@dell.com> September 2003, June 2004
- * legacy CHS retreival by Patrick J. LoPresti <patl@users.sourceforge.net>
+ * legacy CHS retrieval by Patrick J. LoPresti <patl@users.sourceforge.net>
  *      March 2004
  * Command line option parsing, Matt Domsch, November 2004
  */