join lines on long fields in google-calendar-exported vCal (.ics) file

script.sh

# demonstrate pattern
echo -e 'a:a\n a\nb:bb\nc:c\n c' | perl -0777 -p -e 's/\n //g' | od -c
# input:
# a:a
#  a
# b:bb
# c:c
#  c

# outputs:
# a:aa
# b:bb
# c:cc

# apply to ics file
perl -0777 -p -i.original -e 's/\r\n //g' lololololol.ics