Heredocs

I haven't found a heredoc solution for this one yet:

You have a file containing a list of package names. You want to pass that list to a program as a series of parameters.

1. a=cat(filename)
2. aptitude install $a

Writing text to a variable
$ a=$(cat <<EOT
now
is
the
time
EOT
)
$ echo $a
now is the time
$ echo "$a"
now
is
the
time

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