[PATCH] kernel-docs: fix kernel-doc format problems

Convert to proper kernel-doc format.

Some have extra blank lines (not allowed immed.  after the function name)
or need blank lines (after all parameters).  Function summary must be only
one line.

Colon (":") in a function description does weird things (causes kernel-doc
to think that it's a new section head sadly).

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

kernel/sys.c

@@ -386,7 +386,7 @@ void kernel_restart_prepare(char *cmd)
 /**
  *	kernel_restart - reboot the system
  *	@cmd: pointer to buffer containing command to execute for restart
- *		or NULL
+ *		or %NULL
  *
  *	Shutdown everything and perform a clean reboot.
  *	This is not safe to call in interrupt context.