[PATCH] add missing options to the --help output

[caiqian at redhat.com]

It tries to keep --help output and manpage in sync.

Signed-off-by: CAI Qian <caiqian at redhat.com>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: help.patch
Type: text/x-patch
Size: 2246 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/kexec/attachments/20100622/d7d3c3cc/attachment.bin>