Extra spaces in ical feed

I'm having an issue importing an ical feed from meetup.com into the calendar in drupal using feedapi, and parser_ical. If a line in an ical file is longer than 75 characters, it gets "folded" on to several lines. date_ical_parse unfolds these lines in date_api_ical.inc . However, when it unfolds the lines, it does not remove the spaces that were added when it was folded by meetup. As a result, I end up with extra spaces in my nodes .

From RFC 2445 section 4.1
For example the line:

DESCRIPTION:This is a long description that exists on a long line.

Can be represented as:

DESCRIPTION:This is a lo
 ng description
  that exists on a long line.

I got things to work by changing

     if (!preg_match('/([A-Z]+)[:;](.*)/', $line, $out)) {
      $line = array_pop($icaldata) . ($line);
    }

to

    if (preg_match('/^\s/', $line, $out)) {
      $line = array_pop($icaldata) . substr($line,1);
    }