2 quick questions

I have 2 quick (I hope) questions...

First, how do I add a carrige return to a string, for example I have a 
statement like { ERR="error" }.  I can generate the error message fine, 
but wheen there are multiple errors they are all strung together.  What 
would I put in to add a linefeed to the above statement?

Secondly, I used a procmail rc file someone posted to this list (it has 
been very helpful), but there is a problem shelling out (I think).   Here 
is what I have in the rc file:

# Get the subject
SUBJ=`formail -zxSubject: | sed -e `s/^Re: *//g'`

# Get the sender
SENDER=`formail -zxFrom: `

# Get the date
DATE="date"

# Any errors?
:0
* ERR ?? .
{
        # replace the headers with a reply header
        :0 fh
        | formail -rt -I"Subject: Re: $SUBJ"

        # replace the body with the error message(s), and quote the
        # origional message
        :0 fb
        | ( echo $ERR ; sed -e 's/^/> /' )

-- cut here --

I get the following errors in my log file, and the message header comes 
out somewhat screwed up:

-- cut here --
sed: option requires an argument -- e
Usage: sed [-nV] [--quiet] [--silent] [--version] [-e script]
        [-f script-file] [--expression=script] [--file=script-file] [file...]
procmail: Skipped "*//g'`"
procmail: Skipped "`date`"
 Subject: Re: s/^Re:
  Folder: /usr/lib/sendmail -oi 
-t                                          409
sed: option requires an argument -- e
Usage: sed [-nV] [--quiet] [--silent] [--version] [-e script]
        [-f script-file] [--expression=script] [--file=script-file] [file...]
procmail: Skipped "*//g'`"
 Subject: Re: s/^Re:
  Folder: /usr/lib/sendmail -oi 
-t                                          409
sed: option requires an argument -- e
Usage: sed [-nV] [--quiet] [--silent] [--version] [-e script]
        [-f script-file] [--expression=script] [--file=script-file] [file...]
procmail: Skipped "*//g'`"
 Subject: Re: s/^Re:
  Folder: /usr/lib/sendmail -oi 
-t                                          410

-- cut here --

I know NOTHING about sed, and nothing really substantive about procmail, 
so if someone could give me a hand I would appreciate it.

Also, I would like, as a default, to forward the email to another 
address.  Someone in another message here suggested using the $DEFAULT 
variable.  When I looked it up in the man pages, they seemed to indicate 
that $DEFAULT was the spool directory to send the mail to.  When I 
changed $DEFAULT to the spool directory of the user I want the mail to go 
to, there is an error and the mail is not sent.  Is there an easier 
solution?

Lastly, thanks to all the people who answered my last question regarding 
mail processing.  I hope I am not asking totally stupid questions, I am 
just new to the whole unix/mail thing, and kind of had it thrust upon me 
at work, so I am trying to play catchup as fast as possible.  Again, 
thanks to everyone out there for being so helpful!