feedlabel parameter not working right

Using parameter like

feedlabel="1|2|3|4|5|6|7|8"

with 8 feeds, above parameter setting will list 9 feeds in the calendar legend, although only 8 feeds have been listed in the url parameter.

This happens when the shortcode url parameter is broken into multiple lines with carriage return.
For the plugin to work correctly, the shortcode MUST be a single line.