Right Aligning Mid-line After a Marker?

I'm trying to work out how to make vim right-align comments in my
various config files whilst leaving the rest of the line where it is.

Here's what my .muttrc currently looks like:

set attribution = "* %n wrote on %D:" # Date in ISO 8601 format
set include = yes # Include original message in reply
set indent_string = "> " # Use `>' as quote character
set nomarkers # Don't add marker to wrapped lines

And here's what I'm trying to make it look like:

set attribution = "* %n wrote on %D:" # Date in ISO 8601 format
set include = yes # Include original message in reply
set indent_string = "> " # Use `>' as quote character
set nomarkers # Don't add marker to wrapped lines

So, my question is this: is it possible to get vim to insert the required
number of spaces to get all the text after the `#' to align on the right, say
in column 78? I've tried googling and came up with nothing.

Cheers,
--
Mike | <http://koralatov.com>
``A camel is a horse designed by
a committee.'' --- Larry Wall

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